Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-B.19220.127.116.117
Title & Authors
Full angle range pressure coefficient maps of five-hole probe and new calibration coefficients Kim, Jin-Gwon; Gang, Sin-Hyeong;
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.