Rheological Characterization Of Complex Materials And Modeling Of Shear Free Flows

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Rheological Characterization of Complex Materials and Modeling of Shear-free Flows

Author : Michel A. Beaulne
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)

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Book Synopsis Rheological Characterization of Complex Materials and Modeling of Shear-free Flows by : Michel A. Beaulne

Download or read book Rheological Characterization of Complex Materials and Modeling of Shear-free Flows written by Michel A. Beaulne and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The behaviour of complex materials, the main study of rheology, is investigated in this work. In an effort to better understand these materials, a two-step process was undertaken. First, the nonlinear behaviour of such materials was determined in a laboratory. Second, experimental measurements were extracted from the literature with respect to shear-free flows of complex materials and simulations were performed for the shear-five flows in question. These flows involve uniaxial extension in the case of fiber spinning and film casting, and biaxial extension in the caw of film blowing. Rheological experiments were conducted on polymer solutions, namely poly(ethylene oxide) and polyacrylamide, at room temperature and on a polypropylene (PP) polymer melt at high temperature, with a Weissenberg rheogoniometer in a laboratory. The shear viscosity and first normal stress difference were measured at varying shear rates. An integral constitutive equation of the K-BKZ type was used to predict the nonlinear behaviour of these materials. Transient regression was performed to find the parameters of the K-BKZ model for the U-Stamylan low-density polyethylene (LDPE), and predictions for steady-state materials functions were given. Fiber-spinning simulations were undertaken for a series of complex materials at a wide range of operating conditions. Film-casting simulations were also undertaken for a series of complex materials. (Abstract shortened by UMI.).

Rheological Characterization of Complex Materials and Modeling of Shear-free Flows

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (654 download)

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Book Synopsis Rheological Characterization of Complex Materials and Modeling of Shear-free Flows by :

Download or read book Rheological Characterization of Complex Materials and Modeling of Shear-free Flows written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rheology of Complex Fluids

Author : Abhijit P. Deshpande
Publisher : Springer Science & Business Media
ISBN 13 : 1441964940
Total Pages : 259 pages
Book Rating : 4.4/5 (419 download)

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Book Synopsis Rheology of Complex Fluids by : Abhijit P. Deshpande

Download or read book Rheology of Complex Fluids written by Abhijit P. Deshpande and published by Springer Science & Business Media. This book was released on 2010-09-20 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the School on Rheology of Complex fluids is to bring together young researchers and teachers from educational and R&D institutions, and expose them to the basic concepts and research techniques used in the study of rheological behavior of complex fluids. The lectures will be delivered by well-recognized experts. The book contents will be based on the lecture notes of the school.

An Introduction to Rheology

Author : Howard A. Barnes
Publisher : Elsevier
ISBN 13 : 9780444871404
Total Pages : 214 pages
Book Rating : 4.8/5 (714 download)

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Book Synopsis An Introduction to Rheology by : Howard A. Barnes

Download or read book An Introduction to Rheology written by Howard A. Barnes and published by Elsevier. This book was released on 1989-06 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text introduces the subject of rheology in terms understandable to non-experts and describes the application of rheological principles to many industrial products and processes.

Procedures for the Rheological Characterization of the Nonlinear Behaviour of Complex Fluids in Shear and Squeeze Flows

Author : Daniela Georgeta Coblaş
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (865 download)

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Book Synopsis Procedures for the Rheological Characterization of the Nonlinear Behaviour of Complex Fluids in Shear and Squeeze Flows by : Daniela Georgeta Coblaş

Download or read book Procedures for the Rheological Characterization of the Nonlinear Behaviour of Complex Fluids in Shear and Squeeze Flows written by Daniela Georgeta Coblaş and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper was dedicated exclusively to the rheological characterization of simple and complex fluids and a detailed analyze of available rheometric testing procedures. Throughout this thesis the rheological behavior of both simple and complex fluids has been studied and modeled in both shear and the complex motions (shear tests and squeezing tests). By linking conventional experimental test methods with numerical simulations of real flows, this thesis introduces a new concept in rheology: Computational Rheometry. All experimental investigations carried out in this study for the squeezing flows were accompanied by numerical simulations. For the oscillatory squeezing flow the influence of initial film thikness, oscillatory amplitude and frequency, computational time step was investigated by comparison with the theoretical predictions of squeeze force and a Genrealized Reynolds Equation inclued in a finite element code in Fortran. A validity domain was established for the analitical formulation of squeezing force. The constant velocity squeeze flow was investigated also using a quasi-steady approximation of the motion, which brings a significant reduction of the computational time, and a very good correlation with the transient (deformable mesh) approximation and the analytical predictions. The investigation of free surface influence on the distribution of normal force in both constant velocity and oscillatory squeeze flow was analyzed. In the case of constant velocity squeeze flow, the numerical simulations coupled with the free surface evolution and measured normal force during experimental investigations are suggesting the presence of a partial slip during the experimen.

Computational Rheology

Author : Robert G Owens
Publisher : World Scientific
ISBN 13 : 1783261951
Total Pages : 437 pages
Book Rating : 4.7/5 (832 download)

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Book Synopsis Computational Rheology by : Robert G Owens

Download or read book Computational Rheology written by Robert G Owens and published by World Scientific. This book was released on 2002-05-29 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern day high-performance computers are making available to 21st-century scientists solutions to rheological flow problems of ever-increasing complexity. Computational rheology is a fast-moving subject — problems which only 10 years ago were intractable, such as 3D transient flows of polymeric liquids, non-isothermal non-Newtonian flows or flows of highly elastic liquids through complex geometries, are now being tackled owing to the availability of parallel computers, adaptive methods and advances in constitutive modelling.Computational Rheology traces the development of numerical methods for non-Newtonian flows from the late 1960's to the present day. It begins with broad coverage of non-Newtonian fluids, including their mathematical modelling and analysis, before specific computational techniques are discussed. The application of these techniques to some important rheological flow problems of academic and industrial interest is then treated in a detailed and up-to-date exposition. Finally, the reader is kept abreast of topics at the cutting edge of research in computational applied mathematics, such as adaptivity and stochastic partial differential equations.All the topics in this book are dealt with from an elementary level and this makes the text suitable for advanced undergraduate and graduate students, as well as experienced researchers from both the academic and industrial communities.

Rheological Measurement

Author : A.A. Collyer
Publisher : Springer Science & Business Media
ISBN 13 : 9401728984
Total Pages : 653 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Rheological Measurement by : A.A. Collyer

Download or read book Rheological Measurement written by A.A. Collyer and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many cases rheological measurements are carried out in the simplest of geometries, but the interpretation involved in obtaining the rheological parameters of the test fluids from these measurements is surprisingly complex. The purpose of this book is to emphasise the points on which most workers in the field agree, and to let the authors deal with the contentious points according to their own beliefs and experience. This work represents a summary of the current thought on rheological meas urement by experts in the various techniques. When making measurements and obtaining from them parameters that describe the flow behaviour of the test fluids, it is essential that the experimentalist understands the underlying theory and shortcomings of the measurement technique, that he is aware of the likely microstructure of the fluid, and that from this he can appreciate how the fluid and the measuring system will interact with each other. It is this interaction that gives both the required rheological parameters of the fluids and the artefacts that confuse the issue. This book covers the main rheological measurement techniques from capillary, slit and stretching flows to rotational and oscillatory rheometry in various geometries including sliding plate measurements. These topics are backed up by chapters on more practical aspects, such as commercial instruments, and on computer control and data acquisition. The chapters deal with the basic methods, how the measurements are taken, and what assumptions and interpretations are made to obtain valid data on the test fluids.

Measuring Rheological Properties of Cement-based Materials

Author : Mohammed Sonebi
Publisher : Springer Nature
ISBN 13 : 303136743X
Total Pages : 221 pages
Book Rating : 4.0/5 (313 download)

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Book Synopsis Measuring Rheological Properties of Cement-based Materials by : Mohammed Sonebi

Download or read book Measuring Rheological Properties of Cement-based Materials written by Mohammed Sonebi and published by Springer Nature. This book was released on 2023-10-13 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the work of the RILEM TC 266-MRP, whose purpose was to enhance the reliability of rheological measurements performed on cement-based materials. It makes users more aware of potential sources of errors in the measurements, and provide guidelines on how to observe, counteract or eliminate the errors. Improving the reliability of rheological measurements will further enhance the use of rheology to investigate different aspects of the fresh properties of cement-based materials. After an introduction into mix design and applications, the book delivers a comprehensive overview of rheology definitions, behavior, and parameters; rheometers; measuring and analysis procedures; difficulties and challenges during measurements; relationships with specific empirical tests; and the behavior of concrete near a surface. This report on the measurement of rheological properties of complex materials such as concrete enables readers to understand the applicable concepts of rheology, and address the challenges on the measuring procedures, the rheological models and some errors and limitations of rheometers used.

Techniques in Rheological Measurement

Author : A.A. Collyer
Publisher : Springer Science & Business Media
ISBN 13 : 9401121141
Total Pages : 346 pages
Book Rating : 4.4/5 (11 download)

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Book Synopsis Techniques in Rheological Measurement by : A.A. Collyer

Download or read book Techniques in Rheological Measurement written by A.A. Collyer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an earlier book, Rheological Measurement (A. A. Collyer & D. W. Clegg, Elsevier Applied Science, 1988), the basic rheological methods of measurement presently used were discussed in the light of the basic underlying principles and current theories. The same approach is adopted in this companion book, which is concerned with some newer or more sophisticated techniques that have resulted from a fresh understanding of the subject, or as a result of improvement in computer control, data acquisition and computational power, or more simply from an industrial need, particularly with regard to process control. The first two chapters deal with the extensional flow properties of fluids and their measurement. This inclusion is in response to a greater awareness in industry of the importance of these flows. Chapter 3 intro duces and develops the subject of surface rheology and the measurement of its properties, again a subject of increasing significance. The methods of measurement of the dynamic mechanical properties of fluids and the calculation of the resulting rheological parameters are discussed in Chap ters 4-7 inclusive. The subject areas covered are: large-amplitude oscilla tory shear, a model for viscoelastic fluids and solids, a new method of measuring dynamic mechanical properties, particularly for curing sys tems, and the use of complex waveforms in dynamic mechanical analysis.

Engineering Rheology

Author : Roger I. Tanner
Publisher : OUP Oxford
ISBN 13 : 0191590169
Total Pages : 590 pages
Book Rating : 4.1/5 (915 download)

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Book Synopsis Engineering Rheology by : Roger I. Tanner

Download or read book Engineering Rheology written by Roger I. Tanner and published by OUP Oxford. This book was released on 2000-03-02 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book sets out to provide a guide, with examples, for those who wish to make predictions about the mechanical and thermal behaviour of non-Newtonian materials in engineering and processing technology. After an introductory survey of the field and a review of basic continuum mechanics, the radical differences between elongational and shear behaviour are shown. Two chapters, one based on a continuum approach and the other using microstructural approaches, lead to useful mathematical desriptions of materials for engineering applications. As examples of nearly-viscometric and nearly-elongational flows, there is a discussion of lubrication and related shearing flows, and fibre- spinning and film-blowing respectively. A long chapter is devoted to the important new field of computational rheology, and this is followed by chapters on stability and turbulence and the all-important temperature effects in flow. This new edition contains much new material not available in book form elsewhere-for example wall slip, suspension rheology, computational rheology and new results in stability theory.

Time-resolved Linear and Non-linear Rheology of Thixotropic and Aging Complex Fluids

Author : Joshua David John Rathinaraj
Publisher :
ISBN 13 :
Total Pages : 177 pages
Book Rating : 4.:/5 (132 download)

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Book Synopsis Time-resolved Linear and Non-linear Rheology of Thixotropic and Aging Complex Fluids by : Joshua David John Rathinaraj

Download or read book Time-resolved Linear and Non-linear Rheology of Thixotropic and Aging Complex Fluids written by Joshua David John Rathinaraj and published by . This book was released on 2021 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Temporal changes in microstructure and relaxation dynamics are ubiquitously observed in materials such as hydrogels, food products and drilling fluids. These materials are in general known as mutating materials and the build-up or breakdown of microstructure is commonly both time- and shear-rate (or shear-stress)-dependent resulting in a range of complex phenomena collected under the term thixotropy. It is becoming increasingly im- portant to develop time-resolved rheometric techniques to quantify the behavior of mutating materials accurately. In the present study we first discuss the introduction of better time-resolved techniques in superposition rheometry. Conventional superposition rheometry consists of combining Small Amplitude Oscillatory Shear (SAOS) with a steady unidirectional shear rate to gain insight into the shear-induced changes to the viscoelastic properties of a complex fluid. Orthogonal superposition (OSP), in which the two modes of deformation are perpendicular, has been preferred over parallel superposition to avoid non-linear cross-coupling of the steady shear and oscillatory deformation fields. This cross coupling can lead to unphysi- cal sign changes in the measured material properties, and makes it difficult to interpret the flow-induced mechanical properties. Recently, orthogonal superposition has been used to investigate the shear-induced anisotropy taking place in colloidal gels by comparing the transient evolution of orthogonal moduli with the parallel moduli immediately after cessa- tion of shear. However, probing transient evolution using the OSP technique can be chal- lenging for rapidly mutating complex materials which evolve on time scales comparable to the time scale of the experiment. Using a weakly associated alginate gel, we demonstrate the potential of superimposing fast optimally windowed chirp (OWCh) deformations or- thogonally to the shear deformation which substantially reduces the measurement time. We evaluate the changes in the rate-dependent relaxation spectrum in the direction of applied unidirectional shear rate and in the orthogonal direction deduced from the damping function and orthogonal moduli data respectively. We measure systematic changes between the two spectra measured in orthogonal directions thus revealing and quantifying flow-induced anisotropy in the alginate gel. Secondly, we develop a signal processing technique to monitor accurate temporal evolution of the complex modulus for a specified deformation frequency. Oscillatory rheometric techniques such as Small Amplitude Oscillatory Shear (SAOS) and, more recently, Large Amplitude Oscillatory Shear (LAOS) are now quite widely used for rheological characterization of the viscoelastic properties of complex fluids. However, the conventional application of Fourier transforms for analyzing oscillatory data assume the signals are time- translation invariant, which constrains the rate of mutation of the material to be extremely small. This constraint makes it difficult to accurately study shear-induced microstructural changes in thixotropic and gelling materials. We explore applications of the Gabor transform (a Short Time Fourier Transform (STFT) combined with a Gaussian window), for providing optimal joint time-frequency resolution of a mutating material's viscoelastic properties. First, we show using simple analytic models that application of the STFT enables extraction of useful data from the initial transient response following the inception of oscillatory flow. Secondly, using measurements on a Bentonite clay we show that using a Gabor transform enables us to more accurately measure rapid changes in both the storage and loss modulus with time, and also extract a characteristic thixotropic/aging time scale for the material. Finally, we consider extension of the Gabor transform to non-linear oscillatory deformations using an amplitude-modulated input strain signal, in order to track the evolution of the Fourier-Chebyshev coefficients characterizing thixotropic fluids at a specified deformation frequency. We show that there is a trade-off between frequency and time resolution (effectively a rheological uncertainty principle). We refer to the resulting test proto col as Gaborheometry and construct an operability diagram in terms of the imposed ramp rate and the mutation time of the material. This unconventional, but easily implemented, rheometric approach facilitates both SAOS and LAOS studies of time-evolving materials, reducing the number of required experiments and the data post-processing time significantly. Finally, we use the time-resolved techniques developed in this thesis to understand the thixotropic aging behavior of bentonite dispersions. In soft glassy materials such as ben- tonite clays, the relaxation dynamics and the microstructure slowly but continuously evolve with time to progressively form more stable structures. We investigate and quantify this complex aging behavior of bentonite dispersions by measuring the evolution in the linear viscoelastic behavior at different age times and temperatures. We model the linear viscoelastic properties using a material time domain transformation and a fractional Maxwell gel model which allows us to develop a rheological master curve to quantify and predict the aging behavior of this soft glass over a range of temperatures and time scales. The time-resolved rheometric techniques and procedures for quantifying the rheology of rapidly mutating complex fluids can be extended to a wide range of soft materials and allows us to obtain insight into how microstructural changes drive the evolution in the bulk rheological behavior for thixotropic and aging materials.

Rheology and Non-Newtonian Fluids

Author : Fridtjov Irgens
Publisher : Springer Science & Business Media
ISBN 13 : 3319010530
Total Pages : 192 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Rheology and Non-Newtonian Fluids by : Fridtjov Irgens

Download or read book Rheology and Non-Newtonian Fluids written by Fridtjov Irgens and published by Springer Science & Business Media. This book was released on 2013-07-25 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a brief but thorough introduction to the fascinating subject of non-Newtonian fluids, their behavior and mechanical properties. After a brief introduction of what characterizes non-Newtonian fluids in Chapter 1 some phenomena characteristic of non-Newtonian fluids are presented in Chapter 2. The basic equations in fluid mechanics are discussed in Chapter 3. Deformation kinematics, the kinematics of shear flows, viscometric flows, and extensional flows are the topics in Chapter 4. Material functions characterizing the behavior of fluids in special flows are defined in Chapter 5. Generalized Newtonian fluids are the most common types of non-Newtonian fluids and are the subject in Chapter 6. Some linearly viscoelastic fluid models are presented in Chapter 7. In Chapter 8 the concept of tensors is utilized and advanced fluid models are introduced. The book is concluded with a variety of 26 problems. Solutions to the problems are ready for instructors

Advances in Rheology Research

Author : María Dolores Torres Pérez
Publisher :
ISBN 13 : 9781536128758
Total Pages : 0 pages
Book Rating : 4.1/5 (287 download)

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Book Synopsis Advances in Rheology Research by : María Dolores Torres Pérez

Download or read book Advances in Rheology Research written by María Dolores Torres Pérez and published by . This book was released on 2017-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Rheology Research has been divided into fourteen chapters. The renowned authors of this volume discuss current advances in rheology research for different application fields, covering theoretical and experimental scientific contributions. The fourteen chapters include discussions on a wide range of outstanding rheological issues such as rheology and 3D printing; rheological characterisation of injection grouts using rotational rheometry; analysis of rheological properties of 100% liquid CO2 based gel fracturing fluid; rheology applied to food product design; miscibility and viscoelastic properties of poly(styrene-co-acrylonitrile) blends; rheology of honey; unusual nonlinear rheological behaviour of branched polymers: multiple overshoots in stress growth, experiments and theory; viscosity and viscoelasticity of baby foods; rheology as an instrument for food development; using the Laplace transform in rheology kinetic modeling; design of vibration absorbers using the rheological properties of viscoelastic materials; a viscoelastic fluid due to a non-linear accelerating elastic sheet; an MHD boundary layer viscoelastic fluid flow over a stretching sheet in a porous medium; and thermal radiation effect on fully developed laminar mixed convection flow in a vertical porous stratum by using a differential transform method. All of the above chapters are intended to contribute the improvement understanding of the rheological characterization and performance in numerous application fields from the food to the non-food industries.

The Linear and Nonlinear Rheology of Multiscale Complex Fluids

Author : Aditya Jaishankar
Publisher :
ISBN 13 :
Total Pages : 337 pages
Book Rating : 4.:/5 (897 download)

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Book Synopsis The Linear and Nonlinear Rheology of Multiscale Complex Fluids by : Aditya Jaishankar

Download or read book The Linear and Nonlinear Rheology of Multiscale Complex Fluids written by Aditya Jaishankar and published by . This book was released on 2014 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microstructures of many complex fluids are typically characterized by a broad distribution of internal length scales. Examples of such multiscale materials include physically and chemically cross-linked gels, emulsions, soft colloidal glasses and concentrated suspensions. Due to the complex microstructure, these materials exhibit multiscale power law relaxation under externally imposed deformation. Compact constitutive frameworks that can accurately describe and predict both the linear as well as the nonlinear rheology of such complex fluids have remained elusive. Moreover, the rheological behavior of these materials under extensional deformations, which is important in applications such as spraying and fiber spinning, is relatively poorly understood. The primary contribution of this thesis is the development of a compact constitutive modeling framework to quantitatively describe the rheology of multiscale complex fluids. In the linear limit of small deformations, fractional constitutive equations in conjunction with the concept of quasi-properties have been shown to provide accurate physical descriptions of the broad power law relaxation dynamics exhibited by multiscale materials. In this thesis we very generally show how fractional constitutive equations enable the prediction of the rheological response of multiscale fluids under complex deformation profiles. As a specific example, we analyze the damped inertio-elastic oscillations exhibited at early times by viscoelastic interfacial layers upon the imposition of a constant stress, and the subsequent long time power law creep. We also analyze the small strain lubrication flow regime of a typical tack experiment performed on a crosslinked power law gel, where the extensional deformation of the complex material plays an important role. We extend these models to the large strain nonlinear regime using an integral K-BKZ framework coupled with a strain damping function. We demonstrate in a general manner that nonlinear rheological responses such as shear-thinning and positive first normal stress coefficients can be predicted a priori from linear viscoelastic data and a single additional nonlinear parameter introduced through the damping function. We also demonstrate that well-known empirical rheological models utilized to describe nonlinear behavior such as the Herschel-Bulkley, Cross and Carreau models can be derived using the K-BKZ framework by selecting a suitable fractional relaxation kernel and an appropriate damping function. Additionally, we derive expressions for linear viscometric functions as well as the first normal stress coefficient for materials that exhibit steady shear flow behavior predicted by the above empirical models. Our approach also quantifies the applicability of widely known empirical rheological rules for nonlinear rheology such as the Cox-Merz rule. The second contribution of this thesis is in increasing the understanding of the rheological behavior of multiscale complex fluids in extensional flow fields. For this purpose we utilize a variety of experimental extensional rheology techniques such as Capillary Breakup Extensional Rheometry (CaBER), Filament Stretching Extensional Rheometry (FiSER) and an Optimized Shape Cross-slot Extensional Rheometer (OSCER). Due to their ubiquity in industrial applications as well as in biologically relevant complex fluids, we primarily study aqueous polysaccharide systems (for example Mamaku gum). With the help of these detailed experiments, we investigate and quantify the strength of hydrogen-bonding interactions in this multiscale physically associated gel. We also investigate the extensional rheology of Hyaluronic acid, which has been shown to be an important factor in proper synovial fluid function. The findings of this thesis are widely applicable given the widespread use of multiscale complex fluids in industrial, and biological applications. The fractional constitutive framework derived here overcomes the limitations of current modeling approaches that invoke a large number of empirical constitutive parameters. Our simple models will be useful for quantitative material diagnostics and quality control comparisons as well as for computational simulations. Moreover, the experimental findings on the extensional rheology of multiscale polysaccharide systems will help in the formulation of biologically relevant complex fluids for the treatment of physiological conditions such as osteoarthritis and dysphagia.

Aviation Fuels with Improved Fire Safety

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309058333
Total Pages : 158 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Aviation Fuels with Improved Fire Safety by : National Research Council

Download or read book Aviation Fuels with Improved Fire Safety written by National Research Council and published by National Academies Press. This book was released on 1997-09-18 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reduction of the fire hazard of fuel is critical to improving survivability in impact-survivable aircraft accidents. Despite current fire prevention and mitigation approaches, fuel flammability can overwhelm post-crash fire scenarios. The Workshop on Aviation Fuels with Improved Fire Safety was held November 19-20, 1996 to review the current state of development, technological needs, and promising technology for the future development of aviation fuels that are most resistant to ignition during a crash. This book contains a summary of workshop discussions and 11 presented papers in the areas of fuel and additive technologies, aircraft fuel system requirements, and the characterization of fuel fires.

Rheometry of Pastes, Suspensions, and Granular Materials

Author : Philippe Coussot
Publisher : John Wiley & Sons
ISBN 13 : 0471720569
Total Pages : 311 pages
Book Rating : 4.4/5 (717 download)

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Book Synopsis Rheometry of Pastes, Suspensions, and Granular Materials by : Philippe Coussot

Download or read book Rheometry of Pastes, Suspensions, and Granular Materials written by Philippe Coussot and published by John Wiley & Sons. This book was released on 2005-06-14 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive examination of rheometry theory and its practical applications This publication enables readers to understand and characterize the flow properties of complex fluids and, with this knowledge, develop a wide range of industrial and consumer products. The author fills a gap in the current literature by presenting a comprehensive description of the rheological behavior of pastes, suspensions, and granular materials and by offering readers the rheometrical techniques needed to effectively characterize these materials. With his extensive experience in both academic and industrial research, the author is able to take the field to a new level in: * General schematic classification of the behavior of pastes,suspensions, and granular materials * Systematic review, analysis, and quantification of experimental problems with complex fluids * Insight into the flow behavior of complex fluids gained through the most recent discoveries and research techniques * Comprehensive rheometrical analysis of data obtained from research across a broad range of industries In addition to gaining a thorough understanding of the theory underlining rheometry, readers discover its many practical applications. Throughout the publication, specific examples are provided that illustrate how theory is applied, including examples involving food, civil engineering, cosmetics, pharmaceuticals, paper coatings, paint and ink, ceramics, sewage sludges, granular materials, and natural materials. In summary, this publication provides a comprehensive review of the behavior of pastes, suspensions, and granular materials as well as detailed analysis of rheometrical techniques. Everything needed to determine the behavior and movement of complex fluids is provided. It is, therefore, a recommended resource for rheologists, engineers, and researchers, as well as students who deal with complex fluids in product formulation, quality and process control, and process plant design.

Rheology

Author : Giovanni Astarita
Publisher : Springer Science & Business Media
ISBN 13 : 1468437437
Total Pages : 646 pages
Book Rating : 4.4/5 (684 download)

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Book Synopsis Rheology by : Giovanni Astarita

Download or read book Rheology written by Giovanni Astarita and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the VIIth International Congress on Rheology, which was held in Goteborg in 1976, Proceedings were for the first time printed in advance and distributed to all participants at the time of the Congress. Although of course we Italians would be foolish to even try to emulate our Swedish friends as far as efficiency of organization is concerned, we decided at the very beginning that, as far as the Proceedings were concerned, the VIIIth International Congress on Rheology in Naples would follow the standards of time liness set by the Swedish Society of Rheology. This book is the result we have obtained. We wish to acknowledge the cooperation of Plenum Press in producing it within the very tight time schedule available. Every four years, the International Congress on Rheology represents the focal point where all rheologists meet, and the state of the art is brought up to date for everybody interested; the Proceedings represent the written record of these milestones of scientific progress in rheology. We have tried to make use of the traditions of having invited lectures, and of leaving to the organizing committee the freedom to choose the lecturers as they see fit, in order to collect a group of invited lectures which gives as broad as possible a landscape of the state of the art in every relevant area of rheology. The seventeen invited lectures are collected in the first volume of the proceedings.