0229 熱線流速計と小型静圧プローブを用いた変動速度・圧力の同時測定(OS2-6 乱流の計測・解析・制御,オーガナイズドセッション)

概要

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We have tested seven fluctuating static pressure probes with different lengths to determine the optimal dimensions for this type of pressure probes. The fundamental performances of the probes, e.g., the frequency response, the effect of angle of attack, and the effect of the probe intrusion, have been investigated. The frequency response depends on the length from the pressure holes to the diaphragm of the microphone. The pressure fluctuation increases with the angle of attack and the response to the angle is changed due to the length from the tip to the pressure hole. The effect of the probe intrusion on the mean velocity is mainly due to the stagnation effect of the connector part. The velocity deficit and the increase of the velocity fluctuation are observed due to the wake of the pressure probe when the flow has an angle of attack to the probe axis.
社団法人日本機械学会の論文
2009-11-06