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-Îµ 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. Â© 2007 R.T. Edwards, Inc.
Place, publisher, year, edition, pages
2007. Vol. 8, no 1, 95-116 p.
Base stations; Computational fluid dynamics; Electromagnetic compatibility; Heat flux; Porosity; Radio systems, Average temperature deviation; Screen porosity; Wind tunnel measurements, Heat transfer
IdentifiersURN: urn:nbn:se:hig:diva-22679ScopusID: 2-s2.0-34547290987OAI: oai:DiVA.org:hig-22679DiVA: diva2:1040915