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Author : Bernard Bunner
Publisher :
ISBN 13 :
Total Pages : 544 pages
Book Rating : 4.3/5 (91 download)
Download or read book Numerical Simulation of Gas-liquid Bubbly Flows written by Bernard Bunner and published by . This book was released on 2000 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Grétar Tryggvason
Publisher : Cambridge University Press
ISBN 13 : 1139496700
Total Pages : 337 pages
Book Rating : 4.1/5 (394 download)
Download or read book Direct Numerical Simulations of Gas–Liquid Multiphase Flows written by Grétar Tryggvason and published by Cambridge University Press. This book was released on 2011-03-10 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Accurately predicting the behaviour of multiphase flows is a problem of immense industrial and scientific interest. Modern computers can now study the dynamics in great detail and these simulations yield unprecedented insight. This book provides a comprehensive introduction to direct numerical simulations of multiphase flows for researchers and graduate students. After a brief overview of the context and history the authors review the governing equations. A particular emphasis is placed on the 'one-fluid' formulation where a single set of equations is used to describe the entire flow field and interface terms are included as singularity distributions. Several applications are discussed, showing how direct numerical simulations have helped researchers advance both our understanding and our ability to make predictions. The final chapter gives an overview of recent studies of flows with relatively complex physics, such as mass transfer and chemical reactions, solidification and boiling, and includes extensive references to current work.
Author : Martin Sommerfeld
Publisher : Springer Science & Business Media
ISBN 13 : 3642185401
Total Pages : 354 pages
Book Rating : 4.6/5 (421 download)
Download or read book Bubbly Flows written by Martin Sommerfeld and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book summarises the outcom of a priority research programme: 'Analysis, Modelling and Computation of Multiphase Flows'. The results of 24 individual research projects are presented. The main objective of the research programme was to provide a better understanding of the physical basis for multiphase gas-liquid flows as they are found in numerous chemical and biochemical reactors. The research comprises steady and unsteady multiphase flows in three frequently found reactor configurations, namely bubble columns without interiors, airlift loop reactors, and aerated stirred vessels. For this purpose new and improved measurement techniques were developed. From the resulting knowledge and data, new and refined models for describing the underlying physical processes were developed, which were used for the establishment and improvement of analytic as well as numerical methods for predicting multiphase reactors. Thereby, the development, lay-out and scale-up of such processes should be possible on a more reliable basis.
Author : Chao Yang
Publisher : Academic Press
ISBN 13 : 0124115799
Total Pages : 322 pages
Book Rating : 4.1/5 (241 download)
Download or read book Numerical Simulation of Multiphase Reactors with Continuous Liquid Phase written by Chao Yang and published by Academic Press. This book was released on 2014-09-04 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical simulation of multiphase reactors with continuous liquid phase provides current research and findings in multiphase problems, which will assist researchers and engineers to advance this field. This is an ideal reference book for readers who are interested in design and scale-up of multiphase reactors and crystallizers, and using mathematical model and numerical simulation as tools. Yang and Mao’s book focuses on modeling and numerical applications directly in the chemical, petrochemical, and hydrometallurgical industries, rather than theories of multiphase flow. The content will help you to solve reacting flow problems and/or system design/optimization problems. The fundamentals and principles of flow and mass transfer in multiphase reactors with continuous liquid phase are covered, which will aid the reader’s understanding of multiphase reaction engineering. Provides practical applications for using multiphase stirred tanks, reactors, and microreactors, with detailed explanation of investigation methods Presents the most recent research efforts in this highly active field on multiphase reactors and crystallizers Covers mathematical models, numerical methods and experimental techniques for multiphase flow and mass transfer in reactors and crystallizers
Author : Michael Schlüter
Publisher : Springer Nature
ISBN 13 : 3030723615
Total Pages : 642 pages
Book Rating : 4.0/5 (37 download)
Download or read book Reactive Bubbly Flows written by Michael Schlüter and published by Springer Nature. This book was released on 2021-07-29 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents experimental and numerical methods that have been developed during six years of targeted research within the DFG priority program SPP 1740, elucidating the interaction between hydrodynamics, mass transfer and transport as well as chemical reactions in bubbly flows. A special feature of this book is its focus on an interdisciplinary research approach with contributions from chemistry, mathematics and engineering sciences, providing enhanced or novel experimental methods, models and numerical simulations. This book provides fundamental knowledge to students about the current state of knowledge regarding transport processes in reactive bubbly flows as well as to scientists, emphasizing pressing research questions and further current demands for fundamental research. Engineers from the chemical industries will get valuable insights into relevant gas-liquid processes and benefit from recommendations concerning the design of gas-liquid reactors and laboratory experiments for studying the performance of gas-liquid reactions in their own lab.
Author : Liang-Shih Fan
Publisher : Butterworth-Heinemann
ISBN 13 : 1483289508
Total Pages : 380 pages
Book Rating : 4.4/5 (832 download)
Download or read book Bubble Wake Dynamics in Liquids and Liquid-Solid Suspensions written by Liang-Shih Fan and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to a fundamental understanding of the fluid dynamic nature of a bubble wake, more specifically the primary wake, in liquids and liquid-solid suspensions, an dto the role it plays in various important flow phenomena of multiphase systems. Examples of these phenomena are liquid/solids mixing, bubble coalescence and disintergration, particle entrainment to the freeboard, and bed contraction.
Author : LEVEQUE
Publisher : Birkhäuser
ISBN 13 : 3034851162
Total Pages : 214 pages
Book Rating : 4.0/5 (348 download)
Download or read book Numerical Methods for Conservation Laws written by LEVEQUE and published by Birkhäuser. This book was released on 2013-11-11 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: These notes developed from a course on the numerical solution of conservation laws first taught at the University of Washington in the fall of 1988 and then at ETH during the following spring. The overall emphasis is on studying the mathematical tools that are essential in de veloping, analyzing, and successfully using numerical methods for nonlinear systems of conservation laws, particularly for problems involving shock waves. A reasonable un derstanding of the mathematical structure of these equations and their solutions is first required, and Part I of these notes deals with this theory. Part II deals more directly with numerical methods, again with the emphasis on general tools that are of broad use. I have stressed the underlying ideas used in various classes of methods rather than present ing the most sophisticated methods in great detail. My aim was to provide a sufficient background that students could then approach the current research literature with the necessary tools and understanding. vVithout the wonders of TeX and LaTeX, these notes would never have been put together. The professional-looking results perhaps obscure the fact that these are indeed lecture notes. Some sections have been reworked several times by now, but others are still preliminary. I can only hope that the errors are not too blatant. Moreover, the breadth and depth of coverage was limited by the length of these courses, and some parts are rather sketchy.
Author : Chengsi Zhou
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (11 download)
Download or read book Numerical Simulation and Experimental Investigations of Two-phase Flow in Singularities written by Chengsi Zhou and published by . This book was released on 2017 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical simulations and experimental investigations of rising individual Taylor bubble through a vertical sudden expansion and contraction in stagnant Newtonian liquid is presented. The CFD procedure is based on the open source package Gerris which adopts the volume-of-fluid (VOF) method to represent the gas/liquid interface. The numerical method is verified using the existing results of single Taylor bubbles rising in straight columns. The experiments investigate a nitrogen bubble rising in a water-glycerol mixture for different concentrations. The pipe diameter ratio ranges from 0.69 to 1.72. The images of the bubble rising through the singularities are captured by a high-speed camera. Our investigations focus on the transient process of the bubbles passing the singularity. The variations of the bubble velocity and the liquid film thickness are investigated. The results show that the greater expansion ratios yield more perturbations on the bubbles and have strong effects on the tail of the bubble. The unstable bubble tails are cut off into smaller bubbles in some of the test cases and a bubble break-up regime map obtained by simulations has been proposed. The bubble shape variations depend also on the length of the bubbles. For a bubble passing through a contraction, the blocking phenomenon has been observed and a map has been proposed. Finally, this study, based on a large range of Eötvös numbers and expansion/contraction ratios, provides new insights to better understand the effect of singularities on rising Taylor bubbles.
Author : Asghar Esmaeeli-Koosej
Publisher :
ISBN 13 :
Total Pages : 538 pages
Book Rating : 4.3/5 (91 download)
Download or read book Numerical Simulations of Bubbly Flows written by Asghar Esmaeeli-Koosej and published by . This book was released on 1995 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Breuer
Publisher : Springer Science & Business Media
ISBN 13 : 3642559190
Total Pages : 420 pages
Book Rating : 4.6/5 (425 download)
Download or read book High Performance Scientific And Engineering Computing written by Michael Breuer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Douglas Adams' book 'Hitchhiker's Guide to the Galaxy', hyper-intelligent beings reached a point in their existence where they wanted to understand the purpose of their own existence and the universe. They built a supercomputer, called Deep Thought, and upon completion, they asked it for the answer to the ultimate question of life, the universe and everything else. The computer worked for several millennia on the answers to all these questions. When the day arrived for hyper-intelligent beings the to receive the answer, they were stunned, shocked and disappointed to hear that the answer was simply 42. The still open questions to scientists and engineers are typically much sim pler and consequently the answers are more reasonable. Furthermore, because human beings are too impatient and not ready to wait for such a long pe riod, high-performance computing techniques have been developed, leading to much faster answers. Based on these developments in the last two decades, scientific and engineering computing has evolved to a key technology which plays an important role in determining, or at least shaping, future research and development activities in many branches of industry. Development work has been going on all over the world resulting in numerical methods that are now available for simulations that were not foreseeable some years ago. However, these days the availability of supercomputers with Teraflop perfor mance supports extensive computations with technical relevance. A new age of engineering has started.
Author : Guan Heng Yeoh
Publisher : Elsevier
ISBN 13 : 0080914896
Total Pages : 658 pages
Book Rating : 4.0/5 (89 download)
Download or read book Computational Techniques for Multiphase Flows written by Guan Heng Yeoh and published by Elsevier. This book was released on 2009-10-07 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed or multiphase flows of solid/liquid or solid/gas are commonly found in many industrial fields, and their behavior is complex and difficult to predict in many cases. The use of computational fluid dynamics (CFD) has emerged as a powerful tool for the understanding of fluid mechanics in multiphase reactors, which are widely used in the chemical, petroleum, mining, food, beverage and pharmaceutical industries. Computational Techniques for Multiphase Flows enables scientists and engineers to the undertand the basis and application of CFD in muliphase flow, explains how to use the technique, when to use it and how to interpret the results and apply them to improving aplications in process enginering and other multiphase application areas including the pumping, automotive and energy sectors. Understandable guide to a complex subject Important in many industries Ideal for potential users of CFD
Author : Grétar Tryggvason
Publisher :
ISBN 13 : 9781139155229
Total Pages : 324 pages
Book Rating : 4.1/5 (552 download)
Download or read book Direct Numerical Simulations of Gas-liquid Multiphase Flows written by Grétar Tryggvason and published by . This book was released on 2011 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive introduction to direct numerical simulations of multiphase flows for researchers and graduate students in various fields.
Author : Subrata Kumar Majumder
Publisher : Elsevier
ISBN 13 : 012803288X
Total Pages : 462 pages
Book Rating : 4.1/5 (28 download)
Download or read book Hydrodynamics and Transport Processes of Inverse Bubbly Flow written by Subrata Kumar Majumder and published by Elsevier. This book was released on 2016-03-31 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrodynamics and Transport Processes of Inverse Bubbly Flow provides the science and fundamentals behind hydrodynamic characteristics, including flow regimes, gas entrainment, pressure drop, holdup and mixing characteristics, bubble size distribution, and the interfacial area of inverse bubble flow regimes. Special attention is given to mass and heat transfer. This book is an indispensable reference for researchers in academia and industry working in chemical and biochemical engineering. Hydrodynamics and Transport Processes of Inverse Bubbly Flow helps facilitate a better understanding of the phenomena of multiphase flow systems as used in chemical and biochemical industries. A first book in the market dedicated to the hydrodynamics of inverse bubbly flows Includes fundamentals of conventional and inverse bubble columns for different hydrodynamic parameters Includes recommendations for future applications of bubble flows
Author : Hugo A. Jakobsen
Publisher : Springer Science & Business Media
ISBN 13 : 3319050923
Total Pages : 1589 pages
Book Rating : 4.3/5 (19 download)
Download or read book Chemical Reactor Modeling written by Hugo A. Jakobsen and published by Springer Science & Business Media. This book was released on 2014-04-02 with total page 1589 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Reactor Modeling closes the gap between Chemical Reaction Engineering and Fluid Mechanics. The second edition consists of two volumes: Volume 1: Fundamentals. Volume 2: Chemical Engineering Applications In volume 1 most of the fundamental theory is presented. A few numerical model simulation application examples are given to elucidate the link between theory and applications. In volume 2 the chemical reactor equipment to be modeled are described. Several engineering models are introduced and discussed. A survey of the frequently used numerical methods, algorithms and schemes is provided. A few practical engineering applications of the modeling tools are presented and discussed. The working principles of several experimental techniques employed in order to get data for model validation are outlined. The monograph is based on lectures regularly taught in the fourth and fifth years graduate courses in transport phenomena and chemical reactor modeling and in a post graduate course in modern reactor modeling at the Norwegian University of Science and Technology, Department of Chemical Engineering, Trondheim, Norway. The objective of the book is to present the fundamentals of the single-fluid and multi-fluid models for the analysis of single and multiphase reactive flows in chemical reactors with a chemical reactor engineering rather than mathematical bias. Organized into 13 chapters, it combines theoretical aspects and practical applications and covers some of the recent research in several areas of chemical reactor engineering. This book contains a survey of the modern literature in the field of chemical reactor modeling.
Author : Paul On-Yee Yeung
Publisher :
ISBN 13 :
Total Pages : 494 pages
Book Rating : 4.:/5 (89 download)
Download or read book Numerical Simulation of Gas-liquid Reactors written by Paul On-Yee Yeung and published by . This book was released on 1981 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. Schügerl
Publisher : Springer Science & Business Media
ISBN 13 : 3642597351
Total Pages : 639 pages
Book Rating : 4.6/5 (425 download)
Download or read book Bioreaction Engineering written by K. Schügerl and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alongside presenting the fundamentals, this book reviews the state of the art of mathematical modeling and control of bioprocesses, while demonstrating the application in various biological systems important to industry. At the same time, the application of different types of models and control strategies are illustrated, taking into account the recent developments in reactor modeling. In addition to modeling and control, the metabolic flux analysis and the metabolic design and their application to bioprocesses are considered.
Author : Egon Krause
Publisher : Springer Science & Business Media
ISBN 13 : 9783540412137
Total Pages : 562 pages
Book Rating : 4.4/5 (121 download)
Download or read book High Performance Computing in Science and Engineering 2000 written by Egon Krause and published by Springer Science & Business Media. This book was released on 2001 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spinodal Decomposition in Binary Polymer Blends: Monte Carlo Simulations and Dynamic Mean Field Theory.- Dynamics of Convection and Dynamos in Rotating Spheres.- Recent Developments in IMD: Interactions for Covalent and Metallic Systems.- Finite Difference Modelling of Seismic Wave Phenomena within the Earth's Upper Mantle.- Collisional Dynamics of Black Holes and Star Clusters Using Massively Parallel Computing.- Three-Dimensional Direct and Inverse Electromagnetic Scattering.- Precession Driven Flow in Ellipsoidal Cavities.- The Computation of Highly Exited Hyperbolic 3D-eigenmodes and its Application to Cosmology.- Fluid Jet Simulations using Smoothed Particle Hydrodynamics.- Spectral Properties of CUO2 Planes in a Cluster Perturbation Approach.- Electronic, Structural and Vibrational Properties of Chalcogenides on Si(001) and Ge(001) Surfaces.- Dynamical Properties of the t-J Model.- Effects of Three Nucleon-Interactions in A = 4.- Phase Transitions in Insulating 1D Electron Systems.- Excited States of Semiconductors and Molecules.- Jacobi-Davidson Algorithm with Fast Matrix-Vector Multiplikation on Massively Parallel and Vector Supercomputers.- Time-dependent Reactive Scattering for Ion-neutral Collisions.- Ground and Exited States of the Hydrogen Negative Ion and Negative Donor Systems in Strong Magnetic Fields.- Quantum Chemical Calculations of Transition Metal Complexes.- Car-Parrinello Density Functional Calculations of the Bond Rupture Process of Thiolate on Gold in AFM Measurements: Progress and First Results.- DNS of Laminar-Turbulent Transition in a 3D Aerodynamics Boundary-Layer Flow.- High-Performance Computing: Numerical Simulation of the Melt Flow in an Industrial Czochralski Cruzible.- Analysis of an Elastic Wing in Subsonic Flow Using Direct Numerical Aeroelastic Simulation.- Large Eddy Simulation of the Flow over a Matrix of Surface-mounted Cubes.- Simulation of Bubbly Gas-Liquid Flows by a Parallel Finite-Difference /Front-Tracking Method.- Rotary Wing Aerodynamics and Aeroelasticity.- Unsteady Flow Simulations for Turbomachinery Applications on Dynamic Grids.- Testing Turbulence Models by Comparison with DNS Data of Adverse-pressure-gradient Boundary Layer Flow.- Large Eddy Simulation of Subcritical Flow around Sphere.- LES of Turbulent Flows Trough 90°-Pipe Bends on NEC SX-4.- Computations for the European LESFOIL Project.- Correlation Analysis of Permixed Turbulent Flames Using Direct Numerical Simulations.- Adaptive Chemistry Computation to Accelerate Parallel DNS of Turbulent Combustion.- The Generation of Dissipative Quasi-Particles near Turing's Bifurcation in Three-Dimensional Reacting Diffusion Systems.- Upwind Relaxation Algorithm for Reentry Nonequilibrium Flows.- Numerical Simulation of the Coupled Dynamic Processes of the Water-Steam Cycle and the Furnace System.- Container Size Dependence of the Velocity Fluctuations in Suspension of Monodisperse Spheres.- Implementing Luby's Algorithm on the CRAY T3E.- Spatial Partitioning for Parallel Hierarchical Radiosity on Distributed Memory Architectures.- Construction of Large Permutation Representations for Matrix Groups on Parallel Supercomputers.- Advances in High-Performance Computing: Multigrid Methods for Partial Differential Equations and its Applications.- Recent Advances of SKaMPI.- Porting SPLASH-2 Benchmarks to the T3E.
