The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Effect of Cone Angle of a Seven-Hole Probe on the Accuracy Flow Measurement

7공 프로브의 원추각이 유동 측정 정확도에 미치는 영향에 대한 연구

  • 이용진 (한국항공대학교 항공우주 및 기계공학과 대학원(국방기술품질원)) ;
  • 박정신 (한국항공대학교 항공우주 및 기계공학과 대학원) ;
  • 노영철 (한국항공대학교 항공우주 및 기계공학과 대학원) ;
  • 전창수 (한국항공대학교 항공우주 및 기계공학부) ;
  • 곽재수 (한국항공대학교 항공우주 및 기계공학부)
  • Received : 2011.12.06
  • Accepted : 2011.03.24
  • Published : 2011.11.01
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Abstract

In this study, the effect of cone angle of seven-hole probe on the accuracy of measured flow angle and velocity has been investigated. The seven-hole probe consisted of seven 1mm OD stainless inner tubes and one 3mm ID stainless tube. Six cone angles of $45^{\circ}$, $60^{\circ}$, $75^{\circ}$, $90^{\circ}$, $105^{\circ}$ and $120^{\circ}$ were tested. Calibrations of the seven-hole probes were conducted within ${\pm}60^{\circ}$ range with the interval of $5^{\circ}$. Analysis results show that the effect on the cone angle was not significant on the accuracy of the measured flow angle, pressure, and velocity. However, the data reduction method had more effect on the measurement accuracy.

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References

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