Implicit les of compressible turbulent flow

Keiichi Ishiko, Naofumi Ohnishi, Keisuke Sawada

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

14 Citations (Scopus)

Abstract

An implicit Large Eddy Simulation code for compressible flows have been developed, based on the idea of Monotonically Integrated LES. We employ Weighted Compact Nonlinear Scheme in order to attain high accurate resolution of the flowfield. The developed code is verified for the two-dimensional homogeneous turbulent flow, by comparing the inertial range of the energy spectrum with the Direct Numerical Simulation. The comparisons with other two LES approaches are also made. It is shown that the present approach can reproduce the inertial range in the energy spectrum comparable to that by the DNS. A truncation of energy spectrum occurs naturally at high wave number limit, which indicates that the dissipative effect is included properly in the present approach. The present approach can capture the vorticity contours very sharply without any numerical oscillations.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages11154-11162
Number of pages9
ISBN (Print)1563478900, 9781563478901
DOIs
Publication statusPublished - 2007
Event45th AIAA Aerospace Sciences Meeting 2007 - Reno, NV, United States
Duration: 2007 Jan 82007 Jan 11

Publication series

NameCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Volume16

Other

Other45th AIAA Aerospace Sciences Meeting 2007
Country/TerritoryUnited States
CityReno, NV
Period07/1/807/1/11

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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