Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)
- Volume 21 Issue 11
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- Pages.1437-1448
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- 1997
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
DOI QR Code
Full angle range pressure coefficient maps of five-hole probe and new calibration coefficients
5공프로브의 전 각도 범위 압력계수 지도와 새로운 보정계수
- Kim, Jin-Gwon (Dept.of Mechanical Engineering, Graduate School of Seoul National University) ;
- Gang, Sin-Hyeong
- Published : 1997.11.01
Abstract
Pressures of a five-hole probe were measured for a full range of yaw and pitch angles and complete pressure coefficient maps were obtained. Based on these maps, various features of five-hole probe pressures were revealed and new five-hole probe calibration coefficients were devised. The new calibration coefficients show non-diverging characteristics for any flow direction and one-to-one correspondence for a wide range of flow angles. These calibration coefficients expand the valid flow angle range of five-hole probe calibration by .+-.10 degrees and complement a critical defect of five-hole probe zone-division calibration method which has not been known yet. Moreover new non-diverging calibration coefficients have advantages in nulling methods, too.
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