Flying hot-wire system with reciprocating motion of sensor.

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  • 等速度直線往復運動するフライングホットワイヤ法
  • 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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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.

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