等速度直線往復運動するフライングホットワイヤ法

志沢 高朗, 本阿弥 真治, 斉藤 剛

doi:10.1299/kikaib.56.475

等速度直線往復運動するフライングホットワイヤ法

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書誌事項

タイトル別名

Flying hot-wire system with reciprocating motion of sensor.
トウソクドチョクセンオウフクウンドウスルフライングホットワイヤホウ

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説明

This study discusses the development of a new flying hot-wire system with a reciprocating sled. A hot-wire probe attached to the sled driven by an AC servomotor has a maximum bias velocity of 5 m/s in the spanwise z-direction across the stream (in y-z plane). This flying hot-wire system has the advantage that two velocity components U and W can be obtained by processing the output voltages from a reciprocating normal hot-wire. Measurements of the longitudinal vortices embedded in the turbulent boundary layer were performed to verify the flying hot-wire system. The present system is a useful device for studying the large-scale motions of the vortices.