Detailed CFD Modelling of EMC Screen for Radio Base Stations: A Conjugate Heat Transfer Problem
2007 (English)In: International Journal of Heat Exchangers, ISSN 1524-5608, Vol. 8, no 1, 95-116 p.Article in journal (Refereed) Published
The objective of this paper is to perform an experimental as well as CFD investigations of the conjugate heat transfer problem in a sub-rack slot model. A steady-state three-dimensional 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 temperature field.
A general model that covers a considerable range of velocities, screen porosities and heat fluxes was validated experimentally by wind tunnel measurements. The result shows that the RNG k-ε model used with correct y+ and mesh strategy accurately predicts the temperature field. The average temperature deviation at several locations is less than 4% compared to experimental data. The influence of the velocity, screen porosity, heat flux and presence of the EMC screen on the PCB temperature field is commented.
Place, publisher, year, edition, pages
R.T Edwards Inc. , 2007. Vol. 8, no 1, 95-116 p.
RNG, k-ε, porosity, EMC screen, sub-rack, heat transfer
Research subject SRA - Energy
IdentifiersURN: urn:nbn:se:kth:diva-63290ScopusID: 2-s2.0-34547290987OAI: oai:DiVA.org:kth-63290DiVA: diva2:481895
QC 201201312012-01-232012-01-232012-03-23Bibliographically approved