亚音速可压缩横流中超音速射流横截面的粒子图像测速

20th International Congress on Instrumentation in Aerospace Simulation Facilities, 2003. ICIASF '03. Pub Date : 2003-08-25 DOI:10.1109/ICIASF.2003.1274849

S. Beresh, J. Henfling, R. J. Erven

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引用次数: 1

摘要

建立了一种跨声速风洞粒子图像测速仪，用于研究超声速轴对称射流从平板向亚声速可压缩横流的相互作用。数据以两种配置获取;一种是沿风洞中心线在流平面上的二维测量，另一种是在相互作用横切面上的立体测量。诱导反向旋转涡旋对的存在在两个数据集中都清晰可见。流面数据利用垂直速度分量确定了涡旋的强度和位置，而横断面数据直接提供了涡旋运动的测量。对不同配置测量的垂直速度分量进行了比较，结果一致。

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Particle image velocimetry in the crossplane of a supersonic jet in subsonic compressible crossflow

A particle image velocimetry instrument has been constructed for a transonic wind tunnel and applied to study the interaction created by a supersonic axisymmetric jet exhausting from a flat plate into a subsonic compressible crossflow. Data have been acquired in two configurations; one is a two-dimensional measurement on the streamwise plane along the wind tunnel centerline, and the other is a stereoscopic measurement in the crossplane of the interaction. The presence of the induced counter-rotating vortex pair is clearly visible in both data sets. The streamwise-plane data determined the strength and location of the vortices using the vertical velocity component while the crossplane data directly provided a measurement of the vortical motion. A comparison of the vertical velocity component measured using each configuration showed reasonable agreement.

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来源期刊

20th International Congress on Instrumentation in Aerospace Simulation Facilities, 2003. ICIASF '03.

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