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http://dx.doi.org/10.12989/was.2010.13.5.385

Physical modelling of a downdraft outflow with a slot jet  

Lin, W.E. (Department of Mechanical and Materials Engineering, The University of Western Ontario)
Savory, E. (Department of Mechanical and Materials Engineering, The University of Western Ontario)
Publication Information
Wind and Structures / v.13, no.5, 2010 , pp. 385-412 More about this Journal
Abstract
This article provides a time-resolved characterisation of the wind field in a recently-commissioned, downdraft outflow simulator at The University of Western Ontario. A large slot jet approach to physical simulation was used. The simulator performance was assessed against field observations from a 2002 downdraft outflow near Lubbock, Texas. Outflow wind speed records were decomposed according to classical time series analysis. Length scales, characterising the coarse and fine flow structure, were determined from the time-varying mean and residual components, respectively. The simulated downdraft outflow was approximately 1200 times smaller in spatial extent than the 2002 Lubbock event.
Keywords
downdraft outflow; downburst; microburst; localised high-intensity wind; wind tunnel; slot jet; mixing layer; transient signal; time series analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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