Liquid Flow Characteristics in Microchannels

Abstract:

A three-dimensional model was developed to simulate the laminar flow and convective heat transfer in rectangular silicon microchannels，which have hydraulic diameter of 95.3，92.3 ,85.8 , 80 and 75μm respectively．The rationality of the simulation methods and results were validated by comparing with experimental data. The simulation results indicate that the aspect ratio has a significant impact on the Poiseuille number. Conventional fluid flow theory is fit for researching the fluid flow in microchannels, Po is a constant that is not dependent on the Reynolds number.

• Periodical: Applied Mechanics and Materials (Volumes 130-134)
• Pages: 1484-1490
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.130-134.1484
• Online since: October 2011
• Authors: Yan Feng Liu, Hong Wei Li, Jing Wei Zhang, Jin Xue
• Keywords: Micro-Channel, Numerical Simulation, Poiseuille Number, Pressure Drop

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