二维流动模型用于喷射器关键结构设计分析

Study of a two-dimensional flow model on design and analysis of ejector key structure

在试验验证了喷射器二维可压缩流动模型可行性和计算准确性的基础上,应用该模型对喷射器结构与性能和流场之间的变化关系进行了研究.试验结果表明,二维流动模型在没有引入经验参数的条件下,能够较好地预测喷射器的工作特性和性能指标.喷射器内流场直观地显示了混合室截面大小对喷射器性能的影响过程.

Based on the experimental verification of the two-dimensional ejector flow model, the relationships among the structure, the performance and the flow field of the ejector are studied by means of this model. The experimental results show that without introducing any experimental correction coefficient, this model can correctly provide the prediction of the operation characteristics and the performance. The flow field of the ejector shows the effects of the section of the mixing chamber on the performance of the ejector.