Title: Numerical investigation on fluid flow and heat transfer characteristics in a peristaltic micropump

Authors: Kazuya Tatsumi, Ryo Kuroki, Masahiko Nakamura, Kazuyoshi Nakabe

Addresses: Department of Mechanical Engineering and Science, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan; Advanced Research Institute of Fluid Science and Technology, Kyoto University, Saikyo-ku, Kyoto 615-8530, Japan. ' Olympus Medical Systems Corporation, Hachioji-shi, Tokyo 192-8507, Japan. ' Sony Corporation, Minato-ku, Tokyo 108-6201, Japan. ' Department of Mechanical Engineering and Science, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan; Advanced Research Institute of Fluid Science and Technology, Kyoto University, Saikyo-ku, Kyoto 615-8530, Japan

Abstract: A two-dimensional unsteady numerical simulation using Immersed Boundary method is carried out to investigate the fluid flow and heat transfer characteristics in a channel of peristaltic micro pump. The heat transfer target wall is a portion of the immovable top wall, while the rest of the wall including the movable bottom wall with fluctuating in the form of a sinusoidally progressive wave maintains the adiabatic condition. The obtained result shows a pair of large-scale recirculation in the case of relatively larger amplitude enhances the convection heat transfer and reduces the size of reverse flow region near the target wall.

Keywords: peristaltic micropumps; peristaltic wall motion; sinusoidal waves; heat transfer coefficient; fluid flow; pumps; unsteady numerical simulation; immersed boundary method; recirculation; reverse flow region.

DOI: 10.1504/PCFD.2011.041015

Progress in Computational Fluid Dynamics, An International Journal, 2011 Vol.11 No.3/4, pp.160 - 168

Published online: 28 Jun 2011 *

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