NEUTRAL STABILITY OF LAMINAR BOUNDARY LAYERS ALONG THE CONCAVE WALL.

被引:3
|
作者
Tomita, Yuji [1 ]
Funatsu, Katsuya [1 ]
Tsuzuki, Shingo [1 ]
Miyazaki, Kenji [1 ]
机构
[1] Kyushu Inst of Technology, Tobata, Jpn, Kyushu Inst of Technology, Tobata, Jpn
来源
Bulletin of the JSME | 1985年 / 28卷 / 244期
关键词
FLUID MECHANICS - Mathematical Models;
D O I
10.1299/jsme1958.28.2288
中图分类号
学科分类号
摘要
Neutral stability of Gortler vortices was experimentally and theoretically examined. By towing a concave wall of 500mm radius of curvature at a constant speed in a water tank, the neutral stability of the vortices in a low wavenumber region was experimentally determined by observing the behavior of a given disturbance, which was introduced with a row of wings of finite span, by the hydrogen bubble technique. The neutral curves were calculated for two cases of parallel flow and non-parallel flow models. The present measurements are explained by the Smith model better than by the Gortler model.
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页码:2288 / 2293
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