| Citation: | ZHANG Hongzhou, HUANG Yong, YUAN Weiwei. Semi-empirical model for shape of liquid sheet formed by oblique jet impinging onto wall[J]. Journal of Aerospace Power, 2022, 37（11）：2534-2543 doi: 10.13224/j.cnki.jasp.20220238
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By solving the thickness and velocity distribution of the liquid sheet formed by an oblique liquid jet impinging onto a wall, in combination with the energy equation and empirical approximation, a semi-empirical model was established to predict the liquid sheet boundary. The model can directly describe the influence of various factors without numerical iteration of the complex equations. To verify the accuracy of the model, experimental studies were carried out, and the influences of the jet velocity, impact angle, viscosity and surface tension were analyzed. Then, the model results were compared with the experimental results. It was found that the model had a good prediction ability for the liquid sheet shape. The correlation coefficients of the experimental and model boundary curves under all working conditions were larger than 0.99. The model also had a high prediction accuracy even for the downstream complex flow area, with the error about 1%.
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