微通道内气体流动的三维效应  

THREE-DIMENSIONAL EFFECT OF GAS FLOW IN MICRO CHANNELS

作　　者：王沫然[1] 李志信[1] 

机构地区：[1]清华大学工程力学系,北京100084

出　　处：《工程热物理学报》2004年第5期840-842,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学重大基金资助项目(No.59995550-2);国家重点基础研究发展项目资助(No.1999033106)

摘　　要：本文使用直接模拟Monte carlo法对三维直微通道内的气体流动进行了数值模拟,对比了不同截面形状的通道 不同驱动压差的情况,探讨了截面形状对微通道内气体流动三维效应的影响以及三维效应对流量-压差关系的影响。The gas flows in three-dimensional straight micro channels are numerically simulated using the direct simulation Monte Carlo method. Different cross section formations and different driving pressures are taken into considerations. The simulated results indicate the three-dimensional effect of the cross section formations on the micro channel gas flows. The three-dimensional effect on the flowrate-pressuredrop relationship is also analyzed.

关 键 词：三维效应 微气体流动 直接模拟Monte Carlo 

分 类 号：TK16[动力工程及工程热物理—热能工程]