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저속 충돌 제트로 생성되는 액막의 두께 분포 특성 연구
한명준 ( M. J. Han ),전영우 ( Y. U. Jeon ),서태원 ( T. W. Seo ),강보선 ( B. S. Kang ) 한국분무공학회 2021 한국액체미립화학회지 Vol.26 No.1
In this study, the thickness of the liquid sheet formed by two low speed impinging jets was measured by the direct contact method. The effects of jet velocity and liquid viscosity on the thickness were analyzed and the results were compared with theoretical modeling and optical thickness measurement results. The liquid film thickness decreased as the radius and circumferential angle increased. The jet velocity did not affect the liquid film thickness as predicted in theoretical modeling. In the theoretical modeling, there was no influence of the fluid properties on thickness, but in the case of low viscosity liquids, the thickness was predicted high, and it was well matched in high viscosity liquids. The direct measurement results showed no significant difference from the optical measurement results, thus confirming the reliability of the optical measurement method.