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《China Mechanical Engineering》 2016-01
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Numerical Simulation of Internal Flow of Nozzles and Near-field Sprary with OpenFOAM

Gao Yongqiang;Wei Mingrui;Tan Baohua;Yan Fuwu;Dong Weitao;Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology;Hubei Collaborative Innovation Center for Automotive Components Technology,Wuhan University of Technology;Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy,Hubei University of Technology;  
A revised cavitation model was established considering thermal effect with modified evaporation and condensation source terms,which was based on Schnerr-Sauer cavitation model of OpenFOAM toolbox.The computations for the fuel atomization process of the orifices and near nozzles were conducted by original Schnerr-Sauer cavitation model and revised cavitation model respectively.The nozzle of revised cavitation model is more intense than that of original Schnerr-Sauer model,and the area of cavitation is wider than that of original Schnerr-Sauer model.Simultaneously,the length of unperturbed liquid core of the near nozzle region is shorter and atomization of the fuel is smaller.It is dictated that the revised cavitation model can accelerate the fuel break-up and atomization.
【Fund】: 高等学校博士学科点专项科研基金资助项目(20130143110009)
【CateGory Index】: TK421
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