Unsteady CFD Modelling for Electronics Cooling

Author

Tyacke, James C. ; Tucker, Paul G.

Author_Institution

Univ. of Wales, Swansea

fYear

2007

fDate

16-18 April 2007

Firstpage

1

Lastpage

7

Abstract

Numerical simulations of the relatively low Reynolds number flow (Re= 14,200, based on channel height) in a ribbed channel are made using hybrid methods originating from the aerospace industry. Based on Reynolds- averaged Navier Stokes (RANS) and Large Eddy Simulation (LES), hybrid methods are explored using RANS-LES and RANS-Implicit-LES (RANS-ILES) models. Using a hybrid method with simple models we see how coarse we can make the grid and obtain reasonable heat transfer predictions for this particular case. Results from using different LES and hybrid RANS-(I)LES approaches are in better agreement than those using different RANS models..

Keywords

Navier-Stokes equations; channel flow; computational fluid dynamics; cooling; flow simulation; turbulence; Reynolds number flow; Reynolds-averaged Navier Stokes method; channel height; electronics cooling; heat transfer; large eddy simulation; ribbed channel; unsteady CFD modelling; Aerospace industry; Computational fluid dynamics; Electronics cooling; Heat transfer; Numerical models; Numerical simulation; Power system modeling; Predictive models; Radio access networks; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal, Mechanical and Multi-Physics Simulation Experiments in Microelectronics and Micro-Systems, 2007. EuroSime 2007. International Conference on

Conference_Location

London

Print_ISBN

1-4244-1105-X

Electronic_ISBN

1-4244-1106-8

Type

conf

DOI

10.1109/ESIME.2007.359930

Filename

4201127