Advancement And Application Of Multiphase Cfd Modeling To High Speed Supercavitating Flows

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Advancement and Application of Multiphase CFD Modeling to High Speed Supercavitating Flows

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Advancement and Application of Multiphase CFD Modeling to High Speed Supercavitating Flows by :

Download or read book Advancement and Application of Multiphase CFD Modeling to High Speed Supercavitating Flows written by and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent progress in the development and application of homogenous multiphase CFD methods for large-scale gas cavities in liquid flows are presented. The focus of the presentation is on work in n-species transport approaches applied to developed and super-cavitation. Numerical formulation, physical modeling, and applications are included. Numerical issues to be discussed include: preconditioning in the context of incompressible through supersonic Mach numbers, arbitrary numbers of species, high density ratios, and large gas volume/mass fractions; computational grid requirements; dual-time formulation; and general large-scale high-performance computing. Physical modeling issues to be discussed include: homogeneous mixture compressibility; mass-transfer modeling; condensable and non-condensable gas species; turbulence modeling; and 6-degree-of-freedom 6DOF flowfield/rigid-body interaction. The applications to be presented range from naturally cavitating modeled flow on simple configurations (ogives, nozzles, airfoils/wedges) to more industrially relevant, complex-geometry applications including turbomachinery (cavitation breakdown), and super-cavitation (underwater rockets, hypervelocity darts, condensable and non-condensable cavities, gas-on/off transients, twin-vortex regime). Recent applications including Detached Eddy Simulation DES of natural cavities, and 6DOF analysis of a propelled notional super-cavitating vehicle are presented.

Multiphase CFD Modeling of Developed and Supercavitating Flows

Author : Robert F. Kunz
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (228 download)

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Book Synopsis Multiphase CFD Modeling of Developed and Supercavitating Flows by : Robert F. Kunz

Download or read book Multiphase CFD Modeling of Developed and Supercavitating Flows written by Robert F. Kunz and published by . This book was released on 2001 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering interest in natural and ventilated cavities about submerged bodies and in turbomachinery has led researchers to study and attempt to model large scale cavitation for decades. Comparatively simple analytical methods have been used widely and successfully to model developed cavitation, since the hydrodynamics of these flows are often dominated by irrotational and rotational inviscid effects. However, a range of more complex physical phenomena are often associated with such cavities, including viscous effects, unsteadiness, mass transfer, three-dimensionality and compressibility. Though some of these complicating physics can be accommodated in simpler physical models, the ongoing maturation and increased generality of multiphase Computational Fluid Dynamic (CFD) methods has motivated recent research by a number of groups in the application of these methods for developed cavitation analysis. This paper focuses on the authors' recent research activities in this area. The authors have developed an implicit algorithm for the computation of viscous two-phase flows. The baseline differential equation system is the multi-phase Navier-Stokes equations, comprised of the mixture volume, mixture momentum and constituent volume fraction equations. Though further generalization is straightforward, a three-species formulation is pursued here, which separately accounts for the liquid and vapor (which exchange mass) as well as a non-condensable gas field. The implicit method developed employs a dual-time, preconditioned, three-dimensional algorithm, with muti-block and parallel execution capabilities. Time-derivative preconditioning is employed to ensure well-conditioned eigenvalues, which is important for the computational efficiency of the method.

Multiphase Flows for Process Industries

Author : Vivek V. Ranade
Publisher : John Wiley & Sons
ISBN 13 : 3527812040
Total Pages : 838 pages
Book Rating : 4.5/5 (278 download)

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Book Synopsis Multiphase Flows for Process Industries by : Vivek V. Ranade

Download or read book Multiphase Flows for Process Industries written by Vivek V. Ranade and published by John Wiley & Sons. This book was released on 2022-03-30 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover the cutting-edge in multiphase flows used in the process industries In Multiphase Flows for Process Industries: Fundamentals and Applications, a team of accomplished chemical engineers delivers an insightful and complete treatment of the state-of-the-art in commonly encountered multiphase flows in the process industries. After discussing the theoretical background, experimental methods, and computational methods applicable to multiphase flows, the authors explore specific examples from the process industries. The book covers a wide range of multiphase flows, including gas-solid fluidized beds and flows with phase change. It also provides direction on how to use current advances in the field to realize efficient and optimized processes. Filling the gap between theory and practice, this unique reference also includes: A thorough introduction to multiphase flows and the process industry Practical discussions of flow regimes, lower order models and correlations, and the chronological development of mathematical models for multiphase flows Comprehensive explorations of experimental methods for characterizing multiphase flows, including flow imaging and visualization In-depth examinations of computational models for simulating multiphase flows Perfect for chemical and process engineers, Multiphase Flows for Process Industries: Fundamentals and Applications is required reading for graduate and doctoral students in the engineering sciences, as well as professionals in the chemical industry.

Coupled CFD-DEM Modeling

Author : Hamid Reza Norouzi
Publisher : John Wiley & Sons
ISBN 13 : 1119005132
Total Pages : 436 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Coupled CFD-DEM Modeling by : Hamid Reza Norouzi

Download or read book Coupled CFD-DEM Modeling written by Hamid Reza Norouzi and published by John Wiley & Sons. This book was released on 2016-10-17 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the CFD-DEM method of modeling which combines both the Discrete Element Method and Computational Fluid Dynamics to simulate fluid-particle interactions. Deals with both theoretical and practical concepts of CFD-DEM, its numerical implementation accompanied by a hands-on numerical code in FORTRAN Gives examples of industrial applications

Advancing State-of-the-art Multiphase CFD Modeling for PWR Applications

Author : Monica V. Pham
Publisher :
ISBN 13 :
Total Pages : 148 pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Advancing State-of-the-art Multiphase CFD Modeling for PWR Applications by : Monica V. Pham

Download or read book Advancing State-of-the-art Multiphase CFD Modeling for PWR Applications written by Monica V. Pham and published by . This book was released on 2021 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase Computational Fluid Dynamics (M-CFD) has the potential to provide high fidelity simulation of complex boiling phenomena in Light Water Reactors (LWRs), thereby accelerating the development cycle and reducing the need for expensive large-scale experiments. M-CFD relies on two-phase closure models to consistently represent the relevant physical phenomena in flow boiling. However, the still incomplete understanding of the ability of these closures to accurately capture the underlying physics limits the adoption of M-CFD in reactor development and design optimization. Due to the interaction of complex physical phenomena present in subcooled flow boiling, local measurements are necessary to assess the performance of existing closures. Additionally, because previous validation was performed using low pressure data, measurements at high pressure are needed to understand the performance of multiphase closures at PWR conditions.

Computational Methods in Multiphase Flow VI

Author : Andrea Alberto Mammoli
Publisher : WIT Press
ISBN 13 : 1845645189
Total Pages : 345 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Computational Methods in Multiphase Flow VI by : Andrea Alberto Mammoli

Download or read book Computational Methods in Multiphase Flow VI written by Andrea Alberto Mammoli and published by WIT Press. This book was released on 2011 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiphase flows, which can involve compressible or incompressible linear or nonlinear, fluids, Are found in all areas of technology, at all length scales and flow regimes. In spite of their ubiquitousness, however multiphase flow continues to be one of the most challenging areas of computational mechanics and experimental methods, with numerous problems remaining unsolved to date. Because the multiphase flow problems are so complex, advanced computational and experimental methods are often required to solve the equations that describe them. The many hhallenges include modelling nonlinear fluids, modelling and tracking interfaces, dealing with multiple length scales, characterizing phase structures, and treating drop breakup and coalescence. Models must be validated, which requires the use of expensive and difficult experimental techniquess. This book presents contributions on the latest research in these techniques, presented at the sixth in a biennial series of conferences on the subject that begain in 2001. Featured topics include: Bubble and drop dynamics, Flow in porous media, Turbulent flow, Multiphase flow simulation, Image processing, Heat transfer, Interaction of gases, liquids and solids, Interface behaviour, Small scale phenomena, Atomization processes, and Liquid film behaviour.

Unsteady, Three-dimensional Multiphase CFD Analysis of Maneuvering High Speed Super-cavitating Vehicles

Author : Robert F. Kunz
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Unsteady, Three-dimensional Multiphase CFD Analysis of Maneuvering High Speed Super-cavitating Vehicles by : Robert F. Kunz

Download or read book Unsteady, Three-dimensional Multiphase CFD Analysis of Maneuvering High Speed Super-cavitating Vehicles written by Robert F. Kunz and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Basic Research Into High-Speed Supercavitating Bodies

Author :
Publisher :
ISBN 13 :
Total Pages : 33 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Basic Research Into High-Speed Supercavitating Bodies by :

Download or read book Basic Research Into High-Speed Supercavitating Bodies written by and published by . This book was released on 2001 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Critical technologies related to SCAT development, including cavitator hydrodynamics, control surface hydrodynamics, static pressure sensing, flow noise calculations and hydrodynamics modeling of high-speed supercavitating flows. Focused on critical technologies related to SCAT development, including hydrodynamics of advanced cavitator concepts, control surface hydrodynamics, cavity geometry studies for comparisoin with CFD modeling, small-scale model design and fabrication, and flow noise testing and modeling.

Computational Methods in Multiphase Flow VIII

Author : P. Vorobieff
Publisher : WIT Press
ISBN 13 : 184564946X
Total Pages : 549 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Computational Methods in Multiphase Flow VIII by : P. Vorobieff

Download or read book Computational Methods in Multiphase Flow VIII written by P. Vorobieff and published by WIT Press. This book was released on 2015-04-20 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the latest research in one of the most challenging, yet most universally applicable areas of technology. Multiphase flows are found in all areas of technology, at all length scales and flow regimes, involving compressible or incompressible linear or nonlinear fluids. The range of related problems of interest is vast, including astrophysics, biology, geophysics, atmospheric process, and many areas of engineering. The solution of the equations that describe such complex problems often requires a combination of advanced computational and experimental methods. For example, any models developed must be validated through the application of expensive and difficult experimental techniques. Numerous problems in the area thus remain as yet unsolved, including modelling nonlinear fluids, modelling and tracking interfaces, dealing with multiple length scales, characterising phase structures, and treating drop break-up and coalescence. The papers contained in the book were presented at the eighth in a well established series of biennial conferences that began in 2001. They represent close interaction between numerical modellers and other researchers working to gradually resolve the many outstanding issues in understanding of multiphase flow. The papers in the book cover such topics as: Multiphase Flow Simulation; Bubble and Drop Dynamics; Interface Behaviour; Experimental Measurements; Energy Applications; Compressible Flows; Flow in Porous Media; Turbulent Flow; Image Processing; Heat Transfer; Atomization; Hydromagnetics; Plasma; Fluidised Beds; Cavitation.

Ecoulements Supercavitants

Author :
Publisher :
ISBN 13 : 9789283710745
Total Pages : 558 pages
Book Rating : 4.7/5 (17 download)

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Book Synopsis Ecoulements Supercavitants by :

Download or read book Ecoulements Supercavitants written by and published by . This book was released on 2002 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lecture Series organized by NATO-RTO and VKI dealt with high speed hydrodynamics and the flow condition of supercavitation. This refers to the generation of large cavities around wetted bodies. Treated were theory, experiment and computation of: supercavitating motion, variational methods in cavitational flow, independence of the cavity sections, Logvinovich's principle, nonlinear supercavitating flows, artificial supercavitation, dynamic processes of supercavitation, oscillations of ventilated cavities, cavity dynamics, multiphase CFD modeling, control of supercavitation flow, stability of supercavitating motion, supercavities in compressible fluid, supercavitating object propulsion, small perturbation theory, supercavitating 2-D and 3-D hydrofoils, supercavitating propellers.

CFD Modeling of Complex Chemical Processes

Author : Li Xi
Publisher : MDPI
ISBN 13 : 3036512667
Total Pages : 296 pages
Book Rating : 4.0/5 (365 download)

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Book Synopsis CFD Modeling of Complex Chemical Processes by : Li Xi

Download or read book CFD Modeling of Complex Chemical Processes written by Li Xi and published by MDPI. This book was released on 2021-09-01 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational fluid dynamics (CFD), which uses numerical analysis to predict and model complex flow behaviors and transport processes, has become a mainstream tool in engineering process research and development. Complex chemical processes often involve coupling between dynamics at vastly different length and time scales, as well as coupling of different physical models. The multiscale and multiphysics nature of those problems calls for delicate modeling approaches. This book showcases recent contributions in this field, from the development of modeling methodology to its application in supporting the design, development, and optimization of engineering processes.

Twenty-Third Symposium on Naval Hydrodynamics

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309254671
Total Pages : 1024 pages
Book Rating : 4.3/5 (92 download)

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Book Synopsis Twenty-Third Symposium on Naval Hydrodynamics by : National Research Council

Download or read book Twenty-Third Symposium on Naval Hydrodynamics written by National Research Council and published by National Academies Press. This book was released on 2002-01-01 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Vive la Revolution!" was the theme of the Twenty-Third Symposium on Naval Hydrodynamics held in Val de Reuil, France, from September 17-22, 2000 as more than 140 experts in ship design, construction, and operation came together to exchange naval research developments. The forum encouraged both formal and informal discussion of presented papers, and the occasion provides an opportunity for direct communication between international peers. This book includes sixty-three papers presented at the symposium which was organized jointly by the Office of Naval Research, the National Research Council (Naval Studies Board), and the Bassin d'Essais des CarÃ¨nes. This book includes the ten topical areas discussed at the symposium: wave-induced motions and loads, hydrodynamics in ship design, propulsor hydrodynamics and hydroacoustics, CFD validation, viscous ship hydrodynamics, cavitation and bubbly flow, wave hydrodynamics, wake dynamics, shallow water hydrodynamics, and fluid dynamics in the naval context.

Transport Phenomena in Multiphase Systems

Author : Hamid Arastoopour
Publisher : Springer Nature
ISBN 13 : 3030685780
Total Pages : 380 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Transport Phenomena in Multiphase Systems by : Hamid Arastoopour

Download or read book Transport Phenomena in Multiphase Systems written by Hamid Arastoopour and published by Springer Nature. This book was released on 2021-08-21 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume fills the need for a textbook presenting basic governing and constitutive equations, followed by several engineering problems on multiphase flow and transport that are not provided in current advanced texts, monographs, or handbooks. The unique emphasis of this book is on the sound formulation of the basic equations describing multiphase transport and how they can be used to design processes in selected industrially important fields. The clear underlying mathematical and physical bases of the interdisciplinary description of multiphase flow and transport are the main themes, along with advances in the kinetic theory for particle flow systems. The book may be used as an upper-level undergraduate or graduate textbook, as a reference by professionals in the design of processes that deal with a variety of multiphase systems, and by practitioners and experts in multiphase science in the area of computational fluid dynamics (CFD) at U.S. national laboratories, international universities, research laboratories and institutions, and in the chemical, pharmaceutical, and petroleum industries. Distinct from other books on multiphase flow, this volume shows clearly how the basic multiphase equations can be used in the design and scale-up of multiphase processes. The authors represent a combination of nearly two centuries of experience and innovative application of multiphase transport representing hundreds of publications and several books. This book serves to encapsulate the essence of their wisdom and insight, and:

Survey of CFD Applications for High Speed Inlets

Author : Keith E. Numbers
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Survey of CFD Applications for High Speed Inlets by : Keith E. Numbers

Download or read book Survey of CFD Applications for High Speed Inlets written by Keith E. Numbers and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of techniques and methods for applying computational fluid dynamics (CFD) analysis to high speed inlets and related flows is provided via an extensive literature survey of such applications. Topics covered include governing equations, numerical integration schemes, boundary conditions, gridding requirements, and turbulence models. Results of applications from the literature survey shed light on the relative success of the techniques being used throughout the industry. (AN).

Supercavitation

Author : Igor Nesteruk
Publisher : Springer Science & Business Media
ISBN 13 : 3642236561
Total Pages : 236 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Supercavitation by : Igor Nesteruk

Download or read book Supercavitation written by Igor Nesteruk and published by Springer Science & Business Media. This book was released on 2012-01-11 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection is dedicated to the 70th jubilee of Yu. N. Savchenko, and presents experimental, theoretical, and numerical investigations written by an international group of well-known authors. The contributions solve very important problems of the high-speed hydrodynamics,such as supersonic motion in water, drag diminishing, dynamics and stability of supercavitating vehicles, water entry and hydrodynamic performances of hydrofoils, ventilated cavities after a disc and under the ship bottom. The book is written for researches, scientists, engineers, and students interested in problems of hydromechanics.

Computational Techniques for Multiphase Flows

Author : Guan Heng Yeoh
Publisher : Elsevier
ISBN 13 : 0080914896
Total Pages : 658 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Computational Techniques for Multiphase Flows by : Guan Heng Yeoh

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

Computational Methods in Multiphase Flow IV

Author : A.A. Mammoli
Publisher : WIT Press
ISBN 13 : 1845640799
Total Pages : 417 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Computational Methods in Multiphase Flow IV by : A.A. Mammoli

Download or read book Computational Methods in Multiphase Flow IV written by A.A. Mammoli and published by WIT Press. This book was released on 2007-05-11 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid Dynamics is one of the most important topics of applied mathematics and physics. Together with complex flows and turbulence, multiphase flows remains one of the most challenging areas of computational mechanics, and even seemingly simple problems remain unsolved to date. Multiphase flows are found in all areas of technology, at all length scales and flow regimes. The fluids involved can be compressible or incompressible, linear or nonlinear. Because of the complexity of the problem, it is often essential to utilize advanced computational and experimental methods to solve the complex equations that describe them. Challenges in these simulations include nonlinear fluids, treating drop breakup and coalescence, characterizing phase structures, and many others.This volume brings together work presented at the Fourth International Conference on Computational and Experimental Methods in Multiphase and Complex Flows. Featured topics include: Suspensions; Bubble and Drop Dynamics; Flow in Porous Media; Interfaces; Turbulent Flow; Injectors and Nozzles; Particle Image Velocimetry; Macroscale Constitutive Models; Large Eddy Simulation; Finite Volumes; Interface Tracking Methods; Biological Flows; Environmental Multiphase Flow; Phase Changes and Stochastic Modelling.