Effect Of Rotor Shape On The Transient
Performance Of Viscous Micropump –
Numerical Study
Author(s)
P. Phutthavong & I. Hassan
Abstract
Industrial applications today are demanding the implementation of
microelectromechanical systems (MEMS) into their products. These are
mechanical devices that are able to perform work, and yet have characteristic
lengths less than 1 mm. As a result, Reynolds number is typically low, which
indicates the dominance of viscous forces. When a cylinder placed eccentrically
inside a microchannel, where the rotor axis is perpendicular to the channel axis, a
net force is transferred to the fluid due to the unequal shear stresses on the upper
and lower surfaces of the rotor. Consequently, this causes the surrounding fluid
in the channel to displace towards the microchannel outlet. The present
numerical investigation is a comparative study of transient flow behavior in a
microchannel with rotating c
Keywords
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