初期乱れを考慮した拘束噴流に関する研究 : 第4報,アスペクト比2の場合の乱れ特性

概要

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Measurements of the turbulence property of a bounded jet flow in the case of a nozzle aspect ratio of 2 have been carried out, prescribing the initial turbulence intensity and the nozzle shape. As a result, the turbulence intensities and the turbulence kinetic energies on the jet-center axis show remarkable variations against those of the two-dimensional jet. The distributions of the Reynolds stress correspond well to those of the mean velocity on the jet center plane of the bounded jet, including the existence of the velocity excess. Furthermore, turbulence properties of the bounded jet have been clarified from the variations of the large scale eddies in the turbulence structure on the jet-center axis and the jet center plane by using auto-correlations and the power spectra.
一般社団法人日本機械学会の論文
1988-07-25