噴流・エッジ系における噴流の発振現象 : 第2報,噴流の発振機構の考察

概要

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A two dimensional jet begins to transverse oscillation hen it impinges on a wedge-shaped object. This is well known as the edgetone phenomenon. Nevertheless the real state of affairs of the phenomenon has not yet been clarified completely. In the preceding paper, the authors proposed a theoretical method which can be applied for prediction of the frequency, from a viewpoint that the oscillation of a jet is nothing but the occurrence of an internal wave in the flow field of a jet. This paper is a sequel of the preceding one. Here, consideration is given to the oscillation mechanism of a jet, and an explanation of the phenomenon is proposed, taking account of the effect of pressure feedback from the wedge in addition to the internal wave conception. And the propriety of this explanation is verified by the comparison of experimental and theoretical results.
一般社団法人日本機械学会の論文
1986-08-25