C322 流れの可視化と壁面せん断応力変動から判定した組織構造

概要

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Wall turbulent flow pattern was observed in order to clarify the relationship between organized structure and wall shear stress fluctuation, and simultaneously, fluctuation of the wall shear stress was measured. Intervals in low-speed streaks in ejection and sweep events of organization motion of turbulent flow were examined using the conditional sampling techniques. Wall shear stress fluctuations were measured using flush-mounted hot filmgage. Large amplitude fluctuations of wall shear stress occurred when low speed streaks pass beside the wall shear stress gage within 34 wall-units rather than when low speeds streaks pass above the wall shear stress gage.
日本流体力学会の論文
2000-07-25