Comparison of high order schemes for large eddy simulation of circular cylinder flow

Yiqing Shen, Gecheng Zha

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

This paper compares LES results of a cylinder flow with two sets of numerical schcmes, two span lengths, and a coarse and refined mesh. One set of the numerical scheme is the 7th order WENO scheme for the inviscid fluxes and 6th order central differencing for the viscous terms (7-6), the other set is a 5th order WENO scheme with a 4th order central differencing(5-4). For this purpose, a fully conservative 6th-order central differencing for the viscous terms of compressible flows is developed. The new central differencing scheme uses the same stencil of the WENO scheme. No explicit subgrid scale models are used for the LES. The span length has a significant effect on the solution. The 5-4 scheme agrees better with the experiment with the span length of ID and coarse mesh, whereas the 7-6 scheme performs better at the refined mesh with the span length of πD. However, both schemes have poorer results with the span length of πD.

Original languageEnglish (US)
Title of host publication47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781563479694
DOIs
StatePublished - 2009

Publication series

Name47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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