Issues with validation of urban flow and dispersion CFD models

Schatzmann, Michael; Leitl, Bernd

doi:10.1016/j.jweia.2011.01.005

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Issues with validation of urban flow and dispersion CFD models

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Schatzmann, M., & Leitl, B. (2011). Issues with validation of urban flow and dispersion CFD models. JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, 99(4), 169-186. doi:10.1016/j.jweia.2011.01.005.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0018-9F46-6

Abstract

The paper describes difficulties in the proper evaluation of obstacle-resolving urban CFD models. After a brief description of the evaluation methodology suggested by the European COST action 732, focus is laid on the question of how to obtain validation data that can be regarded as a reliable standard. Data from an entire year of measurements at an urban monitoring station are analyzed, which show a large amount of scattering for seemingly identical cases. The atmospheric variability issue is thoroughly discussed, and a concept for the provision of validation data based on a combination of field and boundary layer wind tunnel experiments is presented. (C) 2011 Elsevier Ltd. All rights reserved.