期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 112, 期 -, 页码 401-412出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2017.04.110
关键词
Spray impingement model; Droplet impact; Prompt splash; Corona splash
资金
- National Natural Science Found of China (NSFC) [91541111, 51320105008]
A new spray/wall impingement model is purposed based on droplet impact experiments and droplet morphology dynamics. Various splashing modes are summarized and analyzed based upon earlier research on droplet impact and conservation laws. Corona splash and prompt splash are distinguished in the new spray/wall impingement model taking the incident and wall conditions into consideration. Morphology dynamics of droplet impingement is analyzed and coupled into the conservation equations, which helps to obtain more accurate dynamic results of splashing droplets. The new wall impact model is validated in a constant volume combustion system under different conditions. Two different fuels, including n-tridecane and diesel, are adopted for spray impingement validations. It is found that this new model shows good performance in predicting impinging spray properties, including radius penetration and splashing height, in wide jet conditions. (C) 2017 Published by Elsevier Ltd.
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