국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	An Improved Data Reduction Method in the Measurement of Velocity Vector by a 5-hole Yaw-meter With a Kiel Tube
저자	Katsuichi MUROTA, Osamu NONAKA, Hirofumi KONDO, Yoshio HAYASHI
Keyword	yaw-meter; yaw-meter data reduction; flow velocity vector measurement
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltm00678.pdf?id=NALTM0000678
보고서번호	NAL TM-678
발행년도	1995.3
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	An attempt was made to improve the data reduction process of a 5-hole yaw-meter with a Kiel tube.A new system of equations to replace the old one2)～4) is proposed,which is used to derive the magnitude and directions of the local flow velocity vectors.This system is simpler compared with the old one because fewer terms are used.As a reult,the time to solve the system of equations by an iteration method is reduced.Also,the way of giving the intial values to start the iteration is improved.The measurement accuracy of the velocity and velocity angles by the present method is the same as by the old method.