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Author : Naveed Ahmed
Release : 2020
Genre :
Kind : eBook
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Book Synopsis An Assessment of Two Classes of Variational Multiscale Methods for the Simulation of Incompressible Turbulent Flows by : Naveed Ahmed
Download or read book An Assessment of Two Classes of Variational Multiscale Methods for the Simulation of Incompressible Turbulent Flows written by Naveed Ahmed. This book was released on 2020. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Naveed Ahmed
Release : 2015
Genre :
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Book Synopsis A Review of Variational Multiscale Methods for the Simulation of Turbulent Incompressible Flows by : Naveed Ahmed
Download or read book A Review of Variational Multiscale Methods for the Simulation of Turbulent Incompressible Flows written by Naveed Ahmed. This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: Various realizations of variational multiscale (VMS) methods for simulating turbulent incompressible flows have been proposed in the past fifteen years. All of these realizations obey the basic principles of VMS methods: They are based on the variational formulation of the incompressible Navier-Stokes equations and the scale separation is defined by projections. However, apart from these common basic features, the various VMS methods look quite different. In this review, the derivation of the different VMS methods is presented in some detail and their relation among each other and also to other discretizations is discussed. Another emphasis consists in giving an overview about known results from the numerical analysis of the VMS methods. A few results are presented in detail to highlight the used mathematical tools. Furthermore, the literature presenting numerical studies with the VMS methods is surveyed and the obtained results are summarized.
Author : Songül Kaya Merdan
Release : 2011-10
Genre :
Kind : eBook
Book Rating : 083/5 ( reviews)
Book Synopsis Numerical Analysis of a Variational Multiscale Method for Turbulence by : Songül Kaya Merdan
Download or read book Numerical Analysis of a Variational Multiscale Method for Turbulence written by Songül Kaya Merdan. This book was released on 2011-10. Available in PDF, EPUB and Kindle. Book excerpt: Despite efforts of more than centuries, turbulence phenomena is categorized as an unsolved problem. Turbulence is part of everyday's life. The majority of flows of industrial and technological applications are turbulent; natural flows are invariably so. There are many important and interesting physical phenomena which are connected with turbulent flows. Turbulence is observed in natural and engineering applications such as in weather prediction, air pollution, water pollution, aerodynamics and heat exchangers. This work considers an accurate and reliable solutions of turbulent flows. It is concerned with one of the most promising approaches to the numerical simulation of turbulent flows, the subgrid eddy viscosity models. We analyze both continuous and discontinuous finite element approximation of the new subgrid eddy viscosity model. This approach has the advantage that the diffusivity is introduced only on the small scales of the flow. Numerical test shows the new stabilization technique is robust and efficient in solving Navier-Stokes equations for a wide range of Reynolds numbers.
Author : Pierre Sagaut
Release : 2013
Genre : Science
Kind : eBook
Book Rating : 876/5 ( reviews)
Book Synopsis Multiscale and Multiresolution Approaches in Turbulence by : Pierre Sagaut
Download or read book Multiscale and Multiresolution Approaches in Turbulence written by Pierre Sagaut. This book was released on 2013. Available in PDF, EPUB and Kindle. Book excerpt: The book aims to provide the reader with an updated general presentation of multiscale/multiresolution approaches in turbulent flow simulations. All modern approaches (LES, hybrid RANS/LES, DES, SAS) are discussed and recast in a global comprehensive framework. Both theoretical features and practical implementation details are addressed. Some full scale applications are described, to provide the reader with relevant guidelines to facilitate a future use of these methods.
Author :
Release : 2005
Genre : Electronic journals
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Book Synopsis SIAM Journal on Scientific Computing by :
Download or read book SIAM Journal on Scientific Computing written by . This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt:
