44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012 (July 5-6, 2012. Toyama International Conference Center), Toyama Japan
抄録（英）
This paper reports the results of near-field pressure measurement tests to validate the measurement accuracy in a ballistic range at the Institute of Fluid Science, Tohoku University. The experiments in the ballistic range were performed using two types of axisymmetric projectile which have sharp and blunt nose shape, respectively. The near-field pressure waveforms measured in this experiment were compared to the existing results obtained in the wind tunnel experiments using a static pressure probe. Since the sting support influences were shown in the wind tunnel experimental data, only the front part of the waveform could be compared. The results showed that the nearfield pressure waveform of the sharp nose projectile qualitatively agreed with the existing experimental data although the measurement conditions such as angle-of-attack and Mach number in the ballistic range experiment differed from those in the wind tunnel. On the other hand, the blunt nose projectile comparatively flew horizontally and its measured near-field pressure waveform quantitatively agreed well with the existing experimental data. It was confirmed by a numerical simulation that the small difference of the flight conditions did not have a large influence on the near-field pressure value. These experiment results indicate that this ballistic range has an ability to measure near-field pressure waveform correctly.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
弾道飛行装置を用いた超音速飛行体の近傍場圧力計測精度の検証
61958001.pdf
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