A robust high-order compact method for large eddy simulation

We present a high-order compact method for large eddy simulation (LES) of compressible turbulent flows. Numerical solution of Navier–Stokes equations with high-order compact methods has been limited by numerical instabilities caused by ill-resolved features of the flow. This problem is alleviated by...

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Bibliographic Details
Published inJournal of computational physics Vol. 191; no. 2; pp. 392 - 419
Main Authors Nagarajan, Santhanam, Lele, Sanjiva K., Ferziger, Joel H.
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.11.2003
Subjects
Compact scheme
Compressible turbulent flow
Large eddy simulation
Marine
Staggered grid
Staggered grid
Compact scheme
Large eddy simulation
Compressible turbulent flow
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Summary:We present a high-order compact method for large eddy simulation (LES) of compressible turbulent flows. Numerical solution of Navier–Stokes equations with high-order compact methods has been limited by numerical instabilities caused by ill-resolved features of the flow. This problem is alleviated by a staggered arrangement of conserved variables. Simulations of decaying isotropic turbulence at high Reynolds numbers demonstrate the superiority of the present method over the collocated method. Furthermore, the present method is applicable to the conservative form of the governing equations, thereby allowing total energy conservation, a property usually sacrificed in LES with the collocated method. Boundary schemes that extend the present methodology to non-periodic domains are also presented.
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ISSN:0021-9991
1090-2716
DOI:10.1016/S0021-9991(03)00322-X