Bursting Phenomenon of Turbulent Boundary Layers with Injection and Suction through a Slit
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概要
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Organized structures including bursting phenomenon of turbulent boundary layer with injection and suction through a slit have been investigated experimentally. Conditional sampling with VITA and quadrant analysis have been applied and space-time correlation has been measured. Moreover, the relationship between bursting phenomenon and wall pressure has been investigated. The results show that the contribution from ejection of bursting phenomenon to mean Reynolds stress -<uv>^^^- near the wall decreases by injection and increases by suction. This is the reason why the mean Reynolds stress near the wall decreases by injection and increases by suction. Space-time correlation of velocities indicates that a coherent structure with oblique angle to the wall exists in the boundary layer. The oblique angle to the wall becomes larger with injection.
- 一般社団法人日本機械学会の論文
著者
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Hirayama Naomichi
Faculty Of Engineering Tokyo Metropolitan University
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Sano Masatoshi
Faculty Of Technology Tokyo Metropolitan University
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