首页|Numerical simulation on turbulent flow field in convergent-divergent nozzle
Numerical simulation on turbulent flow field in convergent-divergent nozzle
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
Because of the complication of turbulence's mechanism and law as well as the jet pressure in nozzle is difficult to test by experiment, five turbulent models were applied to numerically simulate the turbulent flow field in convergent-divergent nozzle. Theory analysis and experiment results of mass flow rates conclude that the RNG κ-ε model is the most suitable model. The pressure distribution in the convergent-divergent nozzle was re-vealed by computational fluid dynamic (CFD) simulating on the turbulent flow field under different pressure conditions. The growing conditions of cavitation bubbles were shown; meanwhile, the phenomena in the experiment could be explained. The differential pres-sure between the upstream and downstream in nozzle throat section can improve the cavitating effect of cavitation water jet.
numerical simulationconvergent-divergent nozzleturbulent flow fieldcavita-tion water jetcavitating effect
LU Yi-yu、LIU Yong、LI Xiao-hong、KANG Yong、ZHAO Jian-xin
展开 >
College of Resources and Environmental Science, Chongqing Univerisity, Chongqing 400030, China
国家自然科学基金国家自然科学基金Program for New Century Excellent Talents in Univer-sity
NETL
NSTL
万方数据
