【摘要】 采用流体动力学计算软件FLUENT对大气喷射真空泵的超音速混合过程进行数值模拟,分析了进口压力、引射压力和出口压力的变化对引射流量的影响。结果表明,操作参数对喷射器的波系结构影响很大;工作气体压力的变化对引射流量的影响比较小,当工作压力波动时不会引起性能急剧下降。更多还原

【Abstract】 Hydrokinetics calculating software FLUENT is adopted to make numerical simulation to supersonic mixing process of air jet vacuum pump, influence of inlet pressure, injecting pressure and outlet pressure to injection volume is also analyzed. The result shows that operating parameters has great influence to structure of wave system of ejector, change of pressure of worldng air has a little influence to injection volume, properties will not decrease greatly while working pressure varies.更多还原