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Effect of Gas-liquid Ratio on Characterization of Two-Phase Spray Injected into a Cross-flow  

Cho, Woo-Jin (한국항공대학교 항공우주 및 기계공학과 대학원)
Lee, In-Chul (한국항공대학교 항공우주 및 기계공학과 대학원)
Lee, Bong-Su (한국항공대학교 항공우주 및 기계공학과 대학원)
Koo, Ja-Ye (한국항공대학교 항공우주 및 기계공학부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.12, no.1, 2008 , pp. 16-22 More about this Journal
Abstract
The effect of two-phase spray injected into subsonic cross-flow was studied experimentally. External-mixing of two-phase spray from orifice nozzle with L/d of 3 was tested with various air-liquid ratio that ranges from 0 to 59.4%. Trajectory of spray and breakup phenomena were investigated by shadowgraph photography. Detailed spray structure was characterized in terms of SMD, droplet velocity, and volume flux using PDPA. Experimental results indicate that penetration length was increased and collision point of liquid jets approached to nozzle exit and distributions of mist-like spray were obtained by increasing air-liquid ratio.
Keywords
ALR(Ai. to Liquid mass flow ratio); Cross-flow; SMD(Sauter mean diameter); Volume flux;
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