Recent developments in applied mathematics and mechanics: theory, experiment and practice. Devoted to the 80th anniversary of academician N.N.Yanenko

Akademgorodok, Novosibirsk, Russia, June 24 - 29, 2001

Abstracts

Novosibirsk participants

Modelling the streamwise vortices in supersonic jets

Terekhova N.M.

Institute of Theoretical and Applied Mechanics SB RAS (Novosibirsk)

Numerical modeling of the characteristics of Taylor-Goertler disturbances in a supersonic axisymmetric jet in the viscous and inviscid approximations of hydrodynamic stability theory was performed. The basic equations for small disturbances in a curved cylindrical coordinate system were obtained. The regularities and peculiarities of typical relations of various-scale vortices under changed mean flow parameters were studied. The critical Reynolds numbers of stability loss were found. It was defined that large-scale vortices with low increments as compared with small-scale ones loose stability at low Reynolds numbers. Some experimental results were interpreted.

Full Text in Russian: PDF (501 kb)
Note. Abstracts are published in author's edition

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