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하이브리드 PTV-PIV 알고리듬에 의한 고정밀 와도 추정
조경래(Gyong Rae Cho),도덕희(Deog Hee Doh),권성용(Seong Ryong Kwon),김형준(Heong Jon Kim),이재민(Jae Min Lee) 한국가시화정보학회 2010 한국가시화정보학회 학술발표대회 논문집 Vol.2010 No.11
In this paper, an algorithm which does not require an interpolation is newly constructed by using an affine transformation algorithm. Since PTV(Particle Tracking Velocimetry) has strong benefits when it is used for Nano- and Bio- fluid flows and shows better performances in probing the turbulences than that of PIV(particle image velocimetry), a hybrid algorithm based upon PTV is introduced through PIV calculating processes. Since PTV results are from tracking each particle in the fluid flows, the obtained raw vectors should be interpolated on grids to evaluate the physics of the fluid flows, which produces inevitably large interpolation errors in principle. The developed algorithm has been tested for the calculation of vorticities for the cylinder wake(Re=300).