摘要
利用CFD方法对淹没条件下前混合磨料射流流场进行了数值模拟,研究了喷嘴内外液固两相流的速度规律。仿真结果表明:磨料水射流在淹没条件下的耗散较大,磨料粒子速度最大值出现在一定喷距处;对于圆柱、圆锥、锥直型3种不同形式喷嘴,以锥直型喷嘴效果更优;仿真结果与实验结果基本一致。
Using computational fluid dynamics method to simulate the mixed AWJ before submerged, the velocity regulation of liquid-solid two phase jet flow are analyzed. The simulation results show that energy dissipation of submerged AWJ is great and the axis velocity is affected by abrasive flow and jet velocity. Meanwhile, among the simulated cylinder, cone and shape nozzles, the shape nozzle is the best. Simulation and experiment results show a good consistency.
出处
《湖南工业大学学报》
2008年第4期102-104,108,共4页
Journal of Hunan University of Technology
关键词
磨料射流
数值模拟
淹没射流
多相流
AWJ
numerical simulation
submerged jet
multiphase flow
