NDLI: A Stable Compact Finite Difference Method With Skew-Symmetric Form for LES of Variable Density Flows

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Takeichi, Kota Tamano, Shinji Morinishi, Yohei
Copyright Year	2011
Abstract	The objective of this study is to develop a reliable high-order numerical method for the large eddy simulation (LES) of variable density flows. To improve both the numerical accuracy and stability, we use the compact finite difference method (compact FDM) for the transport equation of compressible flows, in which the skew-symmetric form of the convection term is adopted. In the LES of turbulent flows, the reliability of computational results depends strongly on both the reliability of the subgrid scale (SGS) model and the accuracy of the numerical method. First, the reliability is investigated by performing numerical simulations with unresolved grid resolution for compressible turbulent channel flows without SGS models. Then, we perform the LES of compressible turbulent channel flows with several dynamic and non-dynamic SGS models, and compare turbulence statistics with the corresponding DNS data.
Sponsorship	Fluids Engineering Division
Starting Page	1177
Ending Page	1184
Page Count	8
File Format	PDF
ISBN	9780791844403
DOI	10.1115/AJK2011-02008
Volume Number	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
Conference Proceedings	ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
Language	English
Publisher Date	2011-07-24
Publisher Place	Hamamatsu, Japan
Access Restriction	Subscribed
Subject Keyword	Turbulence Stability Computer simulation Statistics as topic Density Flow (dynamics) Convection Numerical analysis Large eddy simulation Resolution (optics) Reliability Channel flow Compressible flow Finite difference methods
Content Type	Text
Resource Type	Article

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