Pressure Drops of Water Flow Through Micromachined Particle Filters
Author:
Hsiai Tzung K.1, Kwon Cho and Sung2, Mo Yang Joon2, Yang and Xing3, Tai Yu-Chong3, Ho Chih-Ming2
Affiliation:
1. Department of Biomedical Engineering and Division of Cardiovascular Medicine, School of Engineering and Keck School of Medicine, Los Angeles, CA 90089-1451 2. Mechanical and Aerospace Engineering Department, University of California, Los Angeles, CA 90095 3. Department of Electrical Engineering, California Institute of Technology, Pasadena, CA 91125
Abstract
When the particle is in the order of microns, flow through the small opening produces a large velocity gradient, leading to high viscous dissipation. Understanding the flow field is critical in determining the power requirement. In this paper, we studied water flow through filters fabricated by micro-electro-mechanical system (MEMS) techniques. The pressure drop calculated by a three-dimensional numerical code of the Navier-Stokes equations is in a resonable agreement with the experimental data if the diameter and the side wall profile of the holes are measured with high accuracy.
Publisher
ASME International
Subject
Mechanical Engineering
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