Compact CFD modeling of EMC screen for radio base stations: A porous media approach and a correlation for the directional loss coefficients

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Anton Remirez, RaulKTH,Energiteknik,Antón, R., TECNUN, University of Navarra, Navarra 31080, Spain (author)

Compact CFD modeling of EMC screen for radio base stations : A porous media approach and a correlation for the directional loss coefficients

Updated from "Accepted" to "Published". QC 20150702
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. © 2007 IEEE.

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Maskinteknik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering hsv//eng
Directional loss coefficients
Electromagnetic compatibility
Electromagnetic compatibility (EMC) screen
Flow control
Flow pattern
Flow uniformity
Loss measurement
Porous materials
Porous media
Pressure control
Pressure drop
Renormalization group (RNG)
TECHNOLOGY
TEKNIKVETENSKAP

Jonsson, HansKTH,Energiteknik,Royal Institute of Technology (KTH), Stockholm, Sweden,Royal Institute of Technology, Stockholm SE-10044, Sweden, Department of Energy Technology, Stockholm 10044, Sweden(Swepub:kth)u1pq4fms (author)
Moshfegh, BahramHögskolan i Gävle,Linköpings universitet,Tekniska högskolan,Energisystem,Ämnesavdelningen för energi- och maskinteknik,Division of Energy Systems, Department of Management and Engineering, Linköping University, Linköping(Swepub:hig)bmh (author)
KTHEnergiteknik (creator_code:org_t)

In:IEEE transactions on components and packaging technologies (Print): IEEE Press30:4, s. 875-8851521-33311557-9972

About the subject

By the university: Linköping University; Royal Institute of Technology; University of Gävle

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