流体机械2017，Vol.45Issue(5)：21-25,5.DOI:10.3969/j.issn.1005-0329.2017.05.005
异形中心体诱发空化射流的数值模拟研究
Study on Numerical Simulation of Cavitation Water Jet Induced by Abnormal Central-body
摘要
Abstract
In order to produce better cavitation effect and explore a new way of cavitation water jet used in oil tank cleaning and derusting, so as to improve the efficiency and safety of cleaning and derusting. The idea of combining the special shaped central-body with the conical nozzle is proposed.The Mixture multiphase flow model is used to simulate the effect of the jet nozzle on the center nozzle with the flat head cylinder, the 90°cone-shaped cylinder and the hemisphere cylinder under the jet pressure of 12 MPa,the numerical simulation of the jet flow field is carried out. The pressure distribution, the axial velocity distribution and the cavitation volume are compared and analyzed. The results show that the nozzle with hemisphere cylinder has higher jet velocity than the other two nozzles, and there is a large core area;The nozzle with hemisphere cylinder and the nozzle with 90°cone-shaped cylinder have larger cavitation area than that with the flat head cylinder,stability is better;The nozzle with 90°cone-shaped cylinder produced cavitation bubble with the longest diffusion distance and the largest cavitation volume.关键词
异形中心体/空化/数值模拟/Mixture模型Key words
abnormal central-body/cavitation/numerical simulation/mixture model分类
机械制造引用本文复制引用
邓松圣,廖松,于以兵,管金发..异形中心体诱发空化射流的数值模拟研究[J].流体机械,2017,45(5):21-25,5.基金项目
总后军需物资油料部项目(YX213C208) （YX213C208）
