Numerical Simulation Of Cavitating Bubble Laden Turbulent Flows
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Numerical Simulation Of Cavitating Bubble Laden Turbulent Flows
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Author : Ehsan Shams Sobhani
language : en
Publisher:
Release Date : 2010
Numerical Simulation Of Cavitating Bubble Laden Turbulent Flows written by Ehsan Shams Sobhani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Cavitation categories.
Many engineering devices and propulsion systems suffer from undesirable effects of cavitation; such as degradation in the efficiency of pumps and turbines, generation of noise and vibration on ship propeller, increased drag and erosion of propeller blade, etc. In spite of decades of research on this problem, detailed study of cavitation physics is still a technical challenge for the current experimental and numerical approaches. Further development of robust and accurate numerical methods for cavitating flow simulation, is the basis of this research. The main objective of this research is to investigate traveling bubble cavitation in turbulent flows. Variable density Navier-Stokes equations are solved in an unstructured grid finite volume solver. Large Eddy Simulation technique with dynamic Smagorinsky subgrid model is used for turbulence modeling. Bubble cavitation is modeled in a Lagrangian framework with subgrid models for forces acting on bubbles. Bubble size variation is modeled using local flow field hydrodynamic pressure for solving Rayliegh-Plesset equation. An adaptive time stepping method is devised for the efficient solution of this highly non-linear equation. Turbulent flow over an open cavity is reproduced numerically from the experimental work by [Liu and Katz, PoF, 08]. Flow statistics agreed very well to those of experiment. Cavitation inception was studied using two different models: (i) discrete bubble model, and (ii) scalar transport model. Severe cavitation was predicted near on top of the trailing edge for cavitation index of [delta]
Experimental And Numerical Examination Of Cavitating Flows
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Author : Po-Wen Yu
language : en
Publisher:
Release Date : 1995
Experimental And Numerical Examination Of Cavitating Flows written by Po-Wen Yu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Studies In Turbulence
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Author : Thomas B. Gatski
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Studies In Turbulence written by Thomas B. Gatski and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
This book contains contributions by former students, colleagues and friends of Professor John L. Lumley, on the occasion of his 60th birthday, in recognition of his enormous impact on the advancement of turbulence research. A variety of experimental, computational and theoretical topics, including turbulence modeling, direct numerical simulations, compressible turbulence, turbulent shear flows, coherent structures and the Proper Orthogonal Decomposition are contained herein. The diversity and scope of these contributions are further acknowledgment of John Lumley's wide ranging influence in the field of turbulence. The large number of contributions by the authors, many of whom were participants in The Lumley Symposium: Recent Developments in Turbulence (held at ICASE, NASA Langley Research Center on November 12 & 13, 1990), has presented us with the unique opportu nity to select a few numerical and theoretical papers for inclusion in the journal Theoretical and Computational Fluid Dynamics for which Professor Lumley serves as Editor. Extended Abstracts of these pa pers are included in this volume and are appropriately marked. The special issue of TCFD will appear this year and will serve as an additional tribute to John Lumley. As is usually the case, the efforts of others have significantly eased our tasks. We would like to express our deep appreciation to Drs. R.
Turbulent Flows
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Author : G. Biswas
language : en
Publisher: Narosa Publishing House
Release Date : 2002
Turbulent Flows written by G. Biswas and has been published by Narosa Publishing House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Technology & Engineering categories.
This book allows readers to tackle the challenges of turbulent flow problems with confidence. It covers the fundamentals of turbulence, various modeling approaches, and experimental studies. The fundamentals section includes isotropic turbulence and anistropic turbulence, turbulent flow dynamics, free shear layers, turbulent boundary layers and plumes. The modeling section focuses on topics such as eddy viscosity models, standard K-E Models, Direct Numerical Stimulation, Large Eddy Simulation, and their applications. The measurement of turbulent fluctuations experiments in isothermal and stratified turbulent flows are explored in the experimental methods section. Special topics include modeling of near wall turbulent flows, compressible turbulent flows, and more.
Large Eddy Simulation For Incompressible Flows
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Author : P. Sagaut
language : en
Publisher: Springer Science & Business Media
Release Date : 2006
Large Eddy Simulation For Incompressible Flows written by P. Sagaut and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Computers categories.
First concise textbook on Large-Eddy Simulation, a very important method in scientific computing and engineering From the foreword to the third edition written by Charles Meneveau: "... this meticulously assembled and significantly enlarged description of the many aspects of LES will be a most welcome addition to the bookshelves of scientists and engineers in fluid mechanics, LES practitioners, and students of turbulence in general."
Numerical Simulation And Analysis Of Multi Scale Cavitating Flows Using A Hybrid Mixture Bubble Model
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Author : Ebrahim Ghahramani
language : en
Publisher:
Release Date : 2020
Numerical Simulation And Analysis Of Multi Scale Cavitating Flows Using A Hybrid Mixture Bubble Model written by Ebrahim Ghahramani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Studying Turbulence Using Numerical Simulation Databases
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Author : Center for Turbulence Research (U.S.). Center for Turbulence Research
language : en
Publisher:
Release Date : 1987
Studying Turbulence Using Numerical Simulation Databases written by Center for Turbulence Research (U.S.). Center for Turbulence Research and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Turbulence categories.
Higher Level Simulations Of Turbulent Flows
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Author : J. H. Ferziger
language : en
Publisher:
Release Date : 1981
Higher Level Simulations Of Turbulent Flows written by J. H. Ferziger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Fluid dynamics categories.
The five major categories of this paper are: Correlations, Integral methods, Reynolds-averaged equations, large eddy simulation, and full simulation.
Numerical Simulation Of Transonic Turbulent Flows Over A Complex Configuration
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Author : Shu-Cheng Yang
language : en
Publisher:
Release Date : 1990
Numerical Simulation Of Transonic Turbulent Flows Over A Complex Configuration written by Shu-Cheng Yang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
Studying Turbulence Using Numerical Simulation Databases Iii
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Author : Center for Turbulence Research (U.S.)
language : en
Publisher:
Release Date : 1990
Studying Turbulence Using Numerical Simulation Databases Iii written by Center for Turbulence Research (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Turbulence categories.