Influence of artificial viscosity on the formation of vortex cascades in the shear layer

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Fortova, S.V.^1 ; Pronina, A.P.^2

Institute for Computer-Aided Design, Russian Academy of Sciences, Vtoraya Brestskaya 19/18, Moscow

123056, Russia^1

Moscow Institute of Physics and Technology, Institutskiy Pereulok 9, Dolgoprudny, Moscow Region

141700, Russia^2

关键词: Artificial viscosity;    Correlation function;    Shear layer;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012104/pdf
DOI  :  10.1088/1742-6596/653/1/012104

来源: IOP

【 摘 要 】

Numerical analysis of development of vortex cascades in a three-dimensional inviscid shear layer depending on the method of determining and the value of artificial viscosity is done. At the developed stage of turbulence the spectral analysis of kinetic energy is carried out and the law -5/3 of Kholmogorov is confirmed. Pulsation and correlation functions of the flow are investigated.