Transition to turbulence in a supersonic jet

被引：0

作者：

Novopashin, S.A. ^{[1
]}

Perepelkin, A.L. ^{[1
]}

机构：

[1] Inst of Thermophysics, Novosibirsk, Russia

来源：

Russian journal of engineering thermophysics | 1992年 / 2卷 / 01期

关键词：

Flow of Fluids - Transition Flow - Fluids - Density Measurement;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Laminar-turbulent transition on the boundary of a supersonic free jet is studied in this paper. To analyze the flow character, measurements of density field, density fluctuations, and two-point space-time correlations were used. The technique was based on the Rayleigh light-scattering phenomena. The pulse laser technique was employed in the experiments. An additional similarity criterion is determined for the transitional flow of a supersonic jet. This is the relative roughness of the nozzle edge. Two scenarios of the transition to turbulence have been found. A significant difference of fluctuation spectra is shown for these scenarios. The transverse scale of fluctuations is measured.

引用

页码：51 / 61

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