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Compact CFD Modeling of EMC screen for radio base stations: a porous media approach and a correlation for the directional loss coefficients
TECNUN, University of Navarra, Navarra, Spain.ORCID iD: 0000-0003-1329-5891
Royal Institute of Technology (KTH), Stockholm, Sweden.
University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för energi- och maskinteknik. Division of Energy Systems, Department of Management and Engineering, Linköping University, Linköping.ORCID iD: 0000-0003-3472-4210
2007 (English)In: IEEE transactions on components and packaging technologies (Print), ISSN 1521-3331, E-ISSN 1557-9972, Vol. 30, no 4, 875-885 p.Article in journal (Refereed) Published
Abstract [en]

A methodology to obtain the directional pressure loss coefficients in a porous media model of an electromagnetically compatible screen of a radio base station model is presented. The directional loss coefficients of this compact model are validated against a detailed computational fluid dynamics model not only by comparing the total pressure drop, but also by evaluating the flow pattern after the screen. The detailed model was validated in an earlier article by the authors. A parametric study is conducted for 174 cases. Seven parameters were investigated: velocity, inlet height, screen porosity, printed circuit board (PCB) thickness, inlet-screen gap, distance between two PCBs and screen thickness. Based on the compact model parametric study, two correlations for the directional loss coefficients are developed as a function of the Reynolds number and the above geometrical parameters. The average disagreement between the compact model that uses the directional loss coefficients from the correlations and the detailed model was of 3% for the prediction of the total pressure drop and less than 6.5% and 9.5% for two coefficients that accurately characterize the flow pattern.

Place, publisher, year, edition, pages
2007. Vol. 30, no 4, 875-885 p.
Keyword [en]
directional loss coefficients, electromagnetic compatibility (EMC) screen, flow pattern, flow uniformity, porous media, pressure drop, renormalization group (RNG)
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:hig:diva-22657DOI: 10.1109/TCAPT.2007.910065ISI: 000251431100042ScopusID: 2-s2.0-36949028784OAI: oai:DiVA.org:hig-22657DiVA: diva2:1040199
Available from: 2016-10-26 Created: 2016-10-26 Last updated: 2017-01-03Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
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  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
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