摘要
应用Fluent仿真软件,对收缩角为5°、10°、20°、30°、40°和50°6种喷嘴在20 MPa和30 MPa压力下进行了射流仿真,并对仿真结果进行了比较分析。结果表明,轴线方向最大速度随收缩角的增大呈递减趋势;射流稳定性以喷嘴收缩角为10°的最好;不同压力条件下同一喷嘴的射流有着相似的特性。通过仿真可以为喷嘴形状和压力泵的选择提供一定的依据。
With numerical simulation tool of Fluent,water jet from different nozzles with contraction angle of 5°,10°,20°,30°,40°,50° are simulated under pressure 20 MPa and 30 MPa,and the simulation results are compared and analyzed.The results show that the maximum velocity in the axial direction gets slow as the contraction angle gets wider;the jet stability of the nozzle with contraction angle of 10° is the best;the jet from the same nozzle possesses similar character under different pressures.The study offers references for the selection of the nozzle shape and pressure pumps.
出处
《矿山机械》
北大核心
2011年第2期36-39,共4页
Mining & Processing Equipment
