Approximate Deconvolution Models of Turbulence
Title | Approximate Deconvolution Models of Turbulence PDF eBook |
Author | William J. Layton |
Publisher | Springer Science & Business Media |
Pages | 190 |
Release | 2012-01-07 |
Genre | Mathematics |
ISBN | 3642244084 |
This volume presents a mathematical development of a recent approach to the modeling and simulation of turbulent flows based on methods for the approximate solution of inverse problems. The resulting Approximate Deconvolution Models or ADMs have some advantages over more commonly used turbulence models – as well as some disadvantages. Our goal in this book is to provide a clear and complete mathematical development of ADMs, while pointing out the difficulties that remain. In order to do so, we present the analytical theory of ADMs, along with its connections, motivations and complements in the phenomenology of and algorithms for ADMs.
Approximate Deconvolution Models of Turbulence
Title | Approximate Deconvolution Models of Turbulence PDF eBook |
Author | William J. Layton |
Publisher | Springer |
Pages | 190 |
Release | 2012-01-06 |
Genre | Mathematics |
ISBN | 3642244092 |
This volume presents a mathematical development of a recent approach to the modeling and simulation of turbulent flows based on methods for the approximate solution of inverse problems. The resulting Approximate Deconvolution Models or ADMs have some advantages over more commonly used turbulence models – as well as some disadvantages. Our goal in this book is to provide a clear and complete mathematical development of ADMs, while pointing out the difficulties that remain. In order to do so, we present the analytical theory of ADMs, along with its connections, motivations and complements in the phenomenology of and algorithms for ADMs.
Turbulence: Numerical Analysis, Modelling and Simulation
Title | Turbulence: Numerical Analysis, Modelling and Simulation PDF eBook |
Author | William Layton |
Publisher | MDPI |
Pages | 229 |
Release | 2018-05-04 |
Genre | Mathematics |
ISBN | 3038428094 |
This book is a printed edition of the Special Issue "Turbulence: Numerical Analysis, Modelling and Simulation" that was published in Fluids
Mathematics of Large Eddy Simulation of Turbulent Flows
Title | Mathematics of Large Eddy Simulation of Turbulent Flows PDF eBook |
Author | Luigi Carlo Berselli |
Publisher | Springer Science & Business Media |
Pages | 378 |
Release | 2006 |
Genre | Computers |
ISBN | 9783540263166 |
The LES-method is rapidly developing in many practical applications in engineering The mathematical background is presented here for the first time in book form by one of the leaders in the field
Large Eddy Simulation for Compressible Flows
Title | Large Eddy Simulation for Compressible Flows PDF eBook |
Author | Eric Garnier |
Publisher | Springer Science & Business Media |
Pages | 280 |
Release | 2009-08-11 |
Genre | Science |
ISBN | 9048128196 |
This book addresses both the fundamentals and the practical industrial applications of Large Eddy Simulation (LES) in order to bridge the gap between LES research and the growing need to use it in engineering modeling.
IMPROVING THE TEMPORAL ACCURACY OF TURBULENCE MODELS AND RESOLVING THE IMPLEMENTATION ISSUES OF FLUID FLOW MODELING
Title | IMPROVING THE TEMPORAL ACCURACY OF TURBULENCE MODELS AND RESOLVING THE IMPLEMENTATION ISSUES OF FLUID FLOW MODELING PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2021 |
Genre | |
ISBN |
Abstract : A sizeable proportion of the work in this thesis focuses on a new turbulence model, dubbed ADC (the approximate deconvolution model with defect correction). The ADC is improved upon using spectral deferred correction, a means of constructing a higher order ODE solver. Since both the ADC and SDC are based on a predictor-corrector approach, SDC is incorporated with essentially no additional computational cost. We will show theoretically and using numerical tests that the new scheme is indeed higher order in time than the original, and that the benefits of defect correction, on which the ADC is based, are preserved. The final two chapters in this thesis focus on a two important numerical difficulties arising in fluid flow modeling: poor mass-conservation and possible non-physical oscillations. We show that grad-div stabilization, previously assumed to have no effect on the target quantities of the test problem used, can significantly alter the results even on standard benchmark problems. We also propose a work-around and verify numerically that it has promise. Then we investigate two different formulations of Crank-Nicolson for the Navier-Stokes equations. The most attractive implementation, second order accurate for both velocity and pressure, is shown to introduce non-physical oscillations. We then propose two options which are shown to avoid the poor behavior
Multiscale And Multiresolution Approaches In Turbulence
Title | Multiscale And Multiresolution Approaches In Turbulence PDF eBook |
Author | Pierre Sagaut |
Publisher | World Scientific |
Pages | 356 |
Release | 2006-06-19 |
Genre | Science |
ISBN | 1908979879 |
This unique book gives a general unified presentation of the use of the multiscale/multiresolution approaches in the field of turbulence. The coverage ranges from statistical models developed for engineering purposes to multiresolution algorithms for the direct computation of turbulence. It provides the only available up-to-date reviews dealing with the latest and most advanced turbulence models (including LES, VLES, hybrid RANS/LES, DES) and numerical strategies.The book aims at providing the reader with a comprehensive description of modern strategies for turbulent flow simulation, ranging from turbulence modeling to the most advanced multilevel numerical methods./a