Yue-Tzu Yang and Shu-Ching Liao
Numerical Optimization of Trapezoidal Microchannel Heat Sinks
1404 - 1407
2014
8
8
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/9999022
https://publications.waset.org/vol/92
World Academy of Science, Engineering and Technology
This study presents the numerical simulation of threedimensional incompressible steady and laminar fluid flow and conjugate heat transfer of a trapezoidal microchannel heat sink using water as a cooling fluid in a silicon substrate. NavierStokes equations with conjugate energy equation are discretized by finitevolume method. We perform numerical computations for a range of 50 Re 600, 0.05W P 0.8W, 20Wcm2 q" 40Wcm2. The present study demonstrates the numerical optimization of a trapezoidal microchannel heat sink design using the response surface methodology (RSM) and the genetic algorithm method (GA). The results show that the average Nusselt number increases with an increase in the Reynolds number or pumping power, and the thermal resistance decreases as the pumping power increases. The thermal resistance of a trapezoidal microchannel is minimized for a constant heat flux and constant pumping power.
Open Science Index 92, 2014