三次元乱流境界層に埋没する縦渦に関する実験的研究 : 第2報,レイノルズ応力の応答

概要

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The paper presents the Reynolds stress data for the two cases. Case 1 in which the vortex sign is opposite that of the near-wall vorticity of the three-dimensional boundary layer and Case 2 in which the vortex sign is the same as the near-wall vorticity. The value of U^2 is initially large in the vortex core region but decays rapidly for both Cases through the third measurement slot. Regions of high U^2 develop on upwash side of the vortex and above the vortex center, in Case 2. The first region is the vicinity of the cross-flow separation point. The contours of V^2 and W^2 show an elliptic shape centered on the peak vorticity point. The difference between the vertical and spanwise normal stress component shows increasing distortion going downstream, in Case 2.
一般社団法人日本機械学会の論文
1993-09-25