ARTICLE:

• The Effect of Synthetic Jet Actuators on the Convective Flow of Water in Micro-Channels  download article

Victoria Timchenko
University of New South Wales

John Reizes
University of New South Wales

Eddie Leonardi
Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

ABSTRACT

The effect of a synthetic jet on heat transfer rates in forced convection of water in micro-channels has been studied numerically. Unsteady computations of laminar flow have been performed for a two-dimensional micro-channel, 200 μm high and 4.2 mm long, open at either end with the top surface hot and all other solid wall adiabatic. The orifice width was 50 μm, while the length of the orifice passage was 100 μm. The diaphragm was assumed to oscillate sinusoidally in time and parabolically in space. The effectiveness of the proposed cooling procedure has been evaluated by comparing the heat transfer rates with and without the synthetic jet. A maximum heat transfer enhancement of approximately 125% was achieved.

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