Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 5 Issue 3
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- Pages.48-62
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- 1988
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
The Characteristics of Triple Hot-Wire Probe and It's Evaluation
3축 열선 PROBE의 특성과 그 평가
- Kim, Kyung-hoon (Dept. of Industiral Engineering, Kyung Hee University)
- 김경훈 (경희대학교 공대 기계공학과)
- Published : 1988.09.01
Abstract
A triple hot-wire probe has an essential potentiality for the measure- ment of an instantaneous velocity vector in a three dimensional unsteady flow with large amplitude of velocity fluctuations, the key problems asso- ciated with this instrument are the directional range of applicability and the accuracy. This present paper is concerned with a new method of the techniques of calibration and data processing to estimate the three dimensional flow field using an arbitrary shaped triple hot-wire probe. The method is not based on the assumptions of orthogonality or symmetry and it is especially useful for applications to a hand-made probe where probe geometry is not accurately known. The test application is made to evaluate the effect of cone angles of symmetric non-orthogonal probe.
Keywords