喷射器二维流场模型的性能数值模拟分析  

Numerical simulation analysis of ejector performance with two-dimensional flow model

作　　者：陈修娟[1] 陈辉[1] 肖立川[1] 

机构地区：[1]江苏工业学院机械与能源工程学院

出　　处：《冶金能源》2008年第5期28-31,36,共5页Energy For Metallurgical Industry

摘　　要：运用计算流体软件fluent对喷射器内部二维流场进行数值模拟计算。分析喷射器非设计工况下工作参数即工作流体压力、引射流体压力和出口压力对喷射器喷射性能的影响。根据模拟结果得出喷射器喷射性能的影响原因,找出喷射器内部流场流动的激波产生的位置,并对激波现象和壅塞现象产生的原因进行了分析。在实际生产中合理的匹配工作参数之间的关系,可以减少不必要的机械能损失,提高喷射器的喷射性能。The fluid flow was simulated by means of fluent in ejector. Analyzing the operating parameters such as operating steam pressure, the pressure of jet flows and mixed fluids to the entrainment performance of the ejector at the off design condition. The results of the analysis indicate the influential reason of entrainment performance at the off design condition and the location where take place shock phenomenon. The reasons of shock and recirculation phenomenon are also analyzed. Matching the connection of operating parameters rationally can reduce the additional losing of mechanical energy and improve the entrainment performance of the ejector.

关 键 词：喷射系数 变工况性能 模拟 喷射器 激波 

分 类 号：TB126[理学—工程力学]