Title
Quantifying inflow and RANS turbulence model form uncertainties for wind engineering flows Quantifying inflow and RANS turbulence model form uncertainties for wind engineering flows
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam :Elsevier science bv ,
Subject
Physics
Source (journal)
Journal of wind engineering and industrial aerodynamics. - Amsterdam
Source (book)
6th International Symposium on Computational Wind Engineering (CWE), JUN 08-12, 2014, Hamburg, GERMANY
Volume/pages
144(2015) , p. 202-212
ISSN
0167-6105
ISI
000360874900023
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Reynolds-averaged Navier-Stokes (RANS) simulations are often used in the wind engineering practice for the analysis of turbulent bluff body flows. An approach that allows identifying the uncertainty related to the use of reduced-order turbulence models in RANS simulations would significantly increase the confidence in the use of simulation results as a basis for design decisions. In the present study we apply a strategy that enables quantifying these uncertainties by introducing perturbations in the Reynolds stress tensor to simulations of the flow in downtown Oklahoma City. The method is combined with a framework to quantify uncertainties in the inflow wind direction and intensity, and the final result of the UQ approach is compared to field measurement data for the velocity at 13 locations in the downtown area. (C) 2015 Elsevier Ltd. All rights reserved.
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