微管道流体的流动特性

Flow Behaviour of Fluid in Micro - pipes

讨论微流体特性及其测量方法，并进行了微直圆管道内微流体运动特性的初步试验研究。开发了一种适于微流体测量的施加和保持压力的方法。以去离子水和直径为１０～５０μｍ直圆管为对象进行了一系列试验，并与用Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程式描述的微圆管道流体流动规律进行了比较。

This paper discusses the now behaviour of fluid in micro channels and its measuring method and describes an experiment of the flow in straight micro pipes with circular cross section. An easily controlled pressure vessel is developed,which is suitable to micro flow measuring. The preliminary experimental results showed approximately in accordance with the prediction of the Navier - Stokes equations, in the case of deionized water flow in the micro pipes with diameter of 50￣10μm.