The TAR Model for Calculation of Droplet/Wall Impingement

[+] Author and Article Information
Haitao Xu, Yongchang Liu

Department of Naval Architecture & Ocean Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, 430074 P.R. China

Ping He, Haiqing Wang

Department of Mechanical & Electrical Engineering, Shenzhen Polytechnic, Shenzhen, Guangdong, 518055 P.R. China

J. Fluids Eng 120(3), 593-597 (Sep 01, 1998) (5 pages) doi:10.1115/1.2820705 History: Received January 11, 1997; Revised March 03, 1998; Online January 22, 2008


In this paper, we present a new model, called the TAR model, for calculation of droplet/wall impingement. Using this model, we find that the critical Weber number for rebound is not a constant. It varies with the droplet radius. For large drops, the critical Weber numbers and rebound velocities predicted by the TAR model agree with experimental results very well. Whereas, the predicted hydrodynamic behavior of small droplets is very different from that of large drops. This conclusion is significant for modeling engine spray/wall interaction.

Copyright © 1998 by The American Society of Mechanical Engineers
Topics: Engines , Drops , Modeling , Sprays
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