KIAM Main page Web Library  •  Publication Searh   
Publication

KIAM Preprint  35, Moscow, 2013
Authors: Elizarova T. G., Shirokov I.A.
Testing of the QGD-algorithm by a homogeneous isotropic gas-dynamic turbulence decay
Abstract:
We consider a gas-dynamic flow in a cubic domain with a single-frequency distribution of the gas velocity as the initial condition. For large Reynolds numbers the initial distribution decomposes into a number of small-scale eddies that give rise to the uniform isotropic turbulent time-decaying flow. We use the quasi-gasdynamic (QGD) system of equations as the numerical model for this flow. The study of the spectral characteristics of the solution allows to evaluate the algorithm features and to adjust the tuning parameters of the numerical algorithm for turbulent flow modeling.
Keywords:
quasi-gas dynamic (QGD) system, central difference approximations, turbulent flow modeling
Publication language: russian,  pages: 19
Research direction:
Mathematical modelling in actual problems of science and technics
Russian source text:
List of publications citation:
Export link to publication in format:   RIS    BibTeX
View statistics (updated once a day)
over the last 30 days 0 (+0), total hit from 01.09.2019 62
About authors:
  • Elizarova Tatiana Gennadyevna,  orcid.org/0000-0001-6169-5270KIAM RAS
  • Shirokov I.A.,  ,  . .. , -