涡流管的三维数值模拟及其实验研究  

Study on Numerical Simulation of 3D and Experimental of Vortex Tube

作　　者：张佳卫[1] 宋丹路[1] 

机构地区：[1]西南科技大学制造科学与工程学院,四川绵阳621010

出　　处：《机械设计与制造》2015年第5期115-118,共4页Machinery Design & Manufacture

基　　金："高档数控机床与基础制造装备"科技重大专项(2011ZX04002-081);国家自然科学基金资助(51375410);西南科技大学自然科学基金资助(14zx7160);四川省省部共建教育部重点实验室资助课题(13zxzk06)

摘　　要：涡流管是一种没有任何运动部件的简单的能量分离装置,它能够将高压气体分离为温度不同冷热两股气流。对涡流管的性能的影响因素很多,例如进气压力,进气口的温度,长径比,冷流率以及涡流管的结构参数等。为了研究不同因素对涡流管性能的影响,以达到提高涡流管的效率的目的。用三维数值模拟的方法和实验相结合,主要研究进气口压力和冷流率的变化对涡流管的性能的影响。结果表明随着进气口压力的增加,涡流管的效率不断增加;同时当冷流率在（0.6-0.7）范围时,此时的冷却效率有最大值。The vortex tube is a simple device with no moving parts that is capable of separating a high-pressure flow into two lower pressure flows of different temperatures. There are many factors affecting the performance of the vortex tube,such as inlet pressure,inlet temperature,cold fraction and structural parameters of the vortex tube. In order to improve the efficiency of the vortex tube,studies on the influence of different factors on the performance of vortex tube. It mainly makes use of the numerical simulation method and experiment to study that the change of the vortex tube performance when inlet pressure and cold fraction changes. The results show that with the increase of the inlet pressure,the efficiency of the vortex tube is increasing. At the same time,it has the highest cooling efficiency,when the cold fraction changed range from 0.6 to 0.7.

关 键 词：涡流管 进气口压力 冷流率 三维数值模拟 效率 

分 类 号：TH16[机械工程—机械制造及自动化]