Numerical Simulation of Turbulence Flows in Shear Layer

Archives of Metallurgy and Materials

S.V. Fortova¹ 

[1] INSTITUTE FOR COMPUTER-AIDED DESIGN OF THE RUSSIAN ACADEMY OF SCIENCES, 123056, 2-ND BRESTSKAYA ST.19/18, MOSCOW, RUSSIA;

关键词: Keywords: mathematical modeling;    shear layers;    energy cascade;    turbulence;   

DOI  :  10.2478/amm-2014-0201

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

For various problems of continuum mechanics described by the equations of hyperbolic type, the comparative analysis of scenarios of development of turbulent flows in shear layers is carried out. It is shown that the development of the hydrodynamic instabilities leads to a vortex cascade that corresponds to the development stage of the vortices in the energy and the inertial range during the transition to the turbulent flow stage. It is proved that for onset of turbulence the spatial problem definition is basic. At the developed stage of turbulence the spectral analysis of kinetic energy is carried out and the Kolmogorov “-5/3” power law is confirmed.

【 授权许可】

Unknown