喷嘴结构对液-液喷射器性能影响的CFD模拟  

CFD simulation of the influence of nozzle structure on the performance of liquid-liquid ejector

作　　者：别海燕[1] 李春红[1] 安维中[1] 林子昕[1] 朱建民 

机构地区：[1]中国海洋大学化学化工学院,山东青岛266100 [2]辽宁奥克化学集团,辽宁辽阳111003

出　　处：《计算机与应用化学》2016年第10期1068-1073,共6页Computers and Applied Chemistry

基　　金：国家自然科学基金资助项目(51306166)

摘　　要：利用CFD的模拟方法研究了液-液喷射器中喷嘴结构的影响行为和优化选择问题,选择四种喷嘴出口形状,圆形、标准椭圆形、三角形和方形的喷嘴为考察对象,建立液-液喷射器三维模型,考察喷射器内部流体流动特性。模拟结果表明,相同工况下,喷嘴出口形状为椭圆形的喷射器其混合性能优于其他三种喷嘴结构的喷射器,达到完全混合所需时间最短。模拟结果可为喷射器的设计和性能优化提供一定参考。The influence behavior and the optimization of the nozzle structure in the liquid-liquid ejector were studied by the method of CFD. Four kinds of nozzle exit shapes such as circle, oval, triangle and square were selected as the object of research. Four 3D ejector simulation models were established to study the influence of nozzle structure on the flow performance of liquid-liquid ejector. The results of simulation show that the ejector with an elliptical nozzle structure has better mixing performance than that of the other three structures under the same conditions, it takes the shortest time to reach the complete mixing. The results of simulation provide some reference for the design and performance optimization of ejector. The method based on Time Slice Model（TSM） is proposed for batch processes heat exchanger network synthesis by taking place.

关 键 词：液-液喷射器 喷嘴结构 数值模拟 动力学特性 

分 类 号：TQ015.9[化学工程] TP391.9[自动化与计算机技术—计算机应用技术]