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Detailed CFD modeling of EMC screen for radio base stations: A benchmark study
Antón, R., Department of TECNUN, University of Navarra, Navarra 31080, Spain.
Royal Institute of Technology, Stockholm, SE-100 44, Sweden, Deparment of Energy Technology, Stockholm SE-100 44, Sweden.
Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Energy Systems.
2007 (English)In: IEEE transactions on components and packaging technologies (Print), ISSN 1521-3331, Vol. 30, no 4, 754-763 p.Article in journal (Refereed) Published
Abstract [en]

The objective of this paper is to investigate the performance of five well-known turbulence models, in order to find a model that predicts the details of the flow patterns through an electromagnetic compatibility (EMC) screen. The turbulence models investigated in the present study are five different eddy-viscosity models, the standard k-e model, the renormalization group (RNG) k-e model, the realizable k-e model, the standard k-? model, as well as the shear stress transport k-? model. A steady-state 3-D detailed model, which serves as the most accurate representation of the model, was used in order to evaluate the details of the airflow paths and pressure field. The flow was assumed to be isothermal, turbulent and incompressible. A general model that covers a considerable range of velocities and geometries was validated experimentally by wind tunnel measurements. The result shows that for most of the k-e models used with correct y+ and mesh strategy, the pressure drop and the velocity field deviation is small compared to experimental data. The k-? models overpredict the overall pressure drop. When using the RNG k-e model, the total static pressure drop predicted differs around 5%-10% and the average velocity deviation at several locations before and after the screen is around 5%. © 2007 IEEE.

Place, publisher, year, edition, pages
2007. Vol. 30, no 4, 754-763 p.
Keyword [en]
Electromagnetic compatibility, Electromagnetic compatibility (EMC) screen, Flow control, Flow pattern, Hot wire anemometer, Inclined flow, ke, k-?, Perforated plate, Porosity, Porous materials, Pressure drop, Renormalization group (RNG), Subrack
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-47733DOI: 10.1109/TCAPT.2007.910048OAI: diva2:268629
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-11

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