CFD wind-driven rain simulations and their use for HAM modeling

B.J.E. Blocken, S. Roels, J.E. Carmeliet

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


Wind-driven rain is one of the most important boundary conditions for numerical Heat-Air-Moisture (HAM) transfer models. Due to the complexity of WDR however, the current HAM models generally incorporate it in a very simplified way. Recent research has shown that CFD can provide accurate estimates of WDR on building facades. Therefore, in this paper, a combined CFD-HAM approach is presented. It is applied for a simplified wall model. It is shown that the accuracy of the HAM-simulation results is to a large extent determined by the time resolution of the meteorological input data and by the data-averaging technique used for these data. Some guidelines for accurate HAM analyses with WDR are provided.
Original languageEnglish
Title of host publicationProceedings of the 3rd International Building Physics Conference (3IBPC), Montreal, Quebec, Canada
EditorsP. Fazio, H. Ge, J. Rao, G. Desmarais
Place of PublicationGreat Britain
PublisherTaylor and Francis Ltd.
ISBN (Print)978-0-415-41675-7
Publication statusPublished - 2006
Event3rd International Building Physics Conference (IBPC 2006) - Montréal, QC, Canada
Duration: 27 Aug 200631 Aug 2006
Conference number: 3

Publication series

NameProceedings and Monographs in Engineering, Water and Earth Sciences


Conference3rd International Building Physics Conference (IBPC 2006)
Abbreviated titleIBPC 2006
CityMontréal, QC
Other"Research in Building Physics and Building Engineering"


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