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김병재(Byoung Jae Kim),유임정(Ying Zheng Liu),성형진(Hyung Jin Sung) 한국유체기계학회 2003 유체기계 연구개발 발표회 논문집 Vol.- No.-
The influence of property difference in refraction index on micro PIV measurement of two-fluid flow in a microchannel was analyzed. The difference of measurement planes in two fluids would bring misunderstanding of the physics. The objective-imaging system for two-fluid flow measurement was presented, and the condition for measurement of valid velocity profile across two-fluid interface was derived. A micro PIV experimental system was set up to measure two-fluid flow inside a Y-shape microchannel. Under the conditions, three cases of two-fluid flow of glycerol solutions at different concentration (φ), e.g., φ = 0 and φ = 0.2, φ = 0.1 and φ = 0.5, and φ = 0 and φ = 0.6, were measured. Close agreement of experimental and numerical results was found.