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An Experimental and Computational Study on Self-Excited Oscillations in Supersonic Opposing Jet Flows

机译:超声对流射流中自激振荡的实验和计算研究

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摘要

The purpose of the present study is to investigate quantitatively the theoretical models suggested in a previous study by one of the authors, in which the mechanism of self-excited oscillations of a supersonic opposing jet flow in a supersonic free stream has been interpreted physically. Wind tunnel experiments and numerical simulations are conducted to obtain unsteady flow fields at several total pressure ratios of jet and free stream. The Mach numbers of the free stream and jet are 2.5 and 1.5, respectively.
机译:本研究的目的是定量研究其中一位作者在先前研究中提出的理论模型,其中已对超音速自由流中超音速反向射流的自激振荡机理进行了物理解释。进行风洞实验和数值模拟以获得在射流和自由流的几个总压力比下的非恒定流场。自由流和射流的马赫数分别为2.5和1.5。

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