Abo Bibliothek: Guest
Ninth International Symposium on Turbulence and Shear Flow Phenomena
June 30 - July 3, 2015, University of Melbourne, Australia

DOI: 10.1615/TSFP9

Direct Numerical Simulation of Rapidly Distorting Compressible Homogeneous Turbulent Flow

pages 335-340
DOI: 10.1615/TSFP9.570
Get accessGet access

ABSTRAKT

The gas-kinetic scheme is applied into the direct numerical simulation of rapidly distorting turbulence, to investigate the effects of mean flow compressibility on turbulence fluctuations. Different distortion Mach numbers are considered and the results show that as 'implicit effect' (Simone et al., 1997), the redistribution relaxation process in the initial stage has great influences on flow field evolution. Compared with shear flows, mean flow compressibility has distinct 'explicit effect' on turbulence energy in strain flows. The priori estimate of three typical turbulence models for redistribution term shows that high order turbulence model is required for pressure-deviatoric term, and the compressibility corrections of pressure-dilatation part should also be carried out upon high order models.

Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen Preise und Aborichtlinien Begell House Kontakt Language English 中文 Русский Português German French Spain