An experimental study on flow distribution and mixing in impinging jets

Title & Authors
An experimental study on flow distribution and mixing in impinging jets
Lee, Chung-Hun; Jeong, Yeong-Ho; Jeong, Seok-Ho;

Abstract
Mixing process of impinging jets of liquid oxidizer and liquid fuel is simulated by using water and sodium carbonate (Na$\small{_{2}}$CO$\small{_{3}}$) solution. The shapes of liquid sheets are visualized and flowrate distributions are measured by collecting droplets using measuring cells. Mixing charateristics are studied by using acid-base titration. Stable liquid sheets are formed and two liquid jets are well mixed for symmetric impinging jets. Similarity in flowrate distribution for various measuring heights is observed. For asymmetric impinging jets, liquid sheets become unstable as the difference in the velocities of jets increases. In some extreme cases, liquid sheets are not formed and the jets are separated. Dimensionless variables are adopted demonstrating similarly in flowrate distribution. Mixing characteristics vary significantly with experiment conditions.
Keywords
Impinging Jets;Liquid Sheet;Droplet;Acid-Base Titraion;
Language
Korean
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