International Journal of Energy Science and Engineering
Articles Information
International Journal of Energy Science and Engineering, Vol.1, No.3, Jul. 2015, Pub. Date: Jun. 13, 2015
Numerical Simulation of Turbulent Thermo-Fluid Dynamics in Wavy Microchannel
Pages: 100-105 Views: 1954 Downloads: 839
Authors
[01] A. Balabel, CFD-Lab, Mechanical Engineering Dept., Faculty of Engineering, Taif University, Al-Haweiah, Taif, Saudi Arabia.
[02] A. F. Khadrawi, CFD-Lab, Mechanical Engineering Dept., Faculty of Engineering, Taif University, Al-Haweiah, Taif, Saudi Arabia.
Abstract
The hydrodynamic and thermal behaviors of fluid flow in turbulent wavy microchannel are investigated numerically. Effects of Reynolds number on the hydrodynamics and thermal behaviours are investigated. Three different values of Reynolds number (28.7, 38, and 48.7) are adopted in this study. A new numerical method based on the so-called fraction-step method is developed. The control volume approach is applied for solving the Reynolds-Averaged Navier-Stokes (RANS) Equations. The standard k-epsilon turbulence model is used to predict the turbulence characteristics inside the wavy microchannel. It is found that, the maximum temperature and velocity at the center line at the mid-section of the wave increases as Reynolds number increases. Also, it is found the maximum temperature at the end section of the wave vanishes for small values of Reynolds number (Re < 28.7) for turbulent flow, while there is a contradiction at the mid-section of the wave.
Keywords
Thermo-Fluid Behavior, Turbulent Flow, Microelectronic Devices, Numerical Simulation, Wavy Microchannel
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