本文利用Fluent软件对蒸汽喷射器进行数值模拟计算，从射流混合机理角度出发，分析比较了喷射器内工作流体压力、引射流体压力及混合流体出口压力等工作参数变化对喷射系数的影响以及喷射系数变化的原因。结果表明：对给定的喷射器存在一个最佳工作流体压力，在此压力下喷射器可以获得最大喷射系数；随着引射流体压力的增加和出口压力的降低，喷射器的喷射系数逐渐增加。
In this paper, Fluent is employed to the steam ejector. Effect of the operating pressure investigate the flow structure and performance of on the entrainment ratio and flow structure of the ejector is discussed. For a given ejector, there exists maximum entrainment ratio is obtained. Entrainment fluid pressure and decreasing the discharge pressure. an optimum primary fluid pressure at which ratio is increased by increasing the secondary
参考文献
| [1] | 郭建,沈恒根,孙明明,梁珍.一种新型喷射器的内部流场分析[J].流体机械,2009(08):25-28. |
| [2] | R. Yapici;H. K. Ersoy;A. Aktoprakoglu;H. S. Halkaci;O. Yigit .Experimental determination of the optimum performance of ejector refrigeration system depending on ejector area ratio[J].International Journal of Refrigeration,2008(7):1183-1189. |
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