Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
권호 표지

Development of PIV System by Image Board

이미지 보오드를 이용한 PIV시스템의 개발

  • 조대환 (한국해양대학교 대학원) ;
  • 최장운 (한국해양대학교 대학원) ;
  • 도덕희 (한국해양대학교, 기계 ${\cdot}$ 냉동 ${\cdot}$ 자동차공학부) ;
  • 이영호 (한국해양대학교, 기계 ${\cdot}$ 냉동 ${\cdot}$ 자동차공학부)
  • Published : 1996.12.01
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Abstract

A PIV system consisting of an image board slit into personal computer and 2-D sheet light projector is developed and related techniques to improve its performance are discussed. A grey-level cross correlation method capable of overcoming particle seeding limitation is suggested. And a sub-pixed interpolation method in determining the vector terminal is preposed by considering 8-neighbours correlation distributing patterns. Furthermore, pressure estimation from the acquired velocity vectors by applying the Poisson equation is persented with reasonable feasibility. As a practical application of the present system, evaporator flows are analysed and attained instantaneous velocity vectors reveal that the flow phenomena maintain turbulent fluctuation.

Keywords