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Evaluation of Numerical Flow and Dispersion Models for Applications in Industrial and Urban Areas
Author(s) -
Schatzmann M.,
Leitl B.
Publication year - 2009
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200800578
Subject(s) - obstacle , process (computing) , dispersion (optics) , flow (mathematics) , computational fluid dynamics , computer science , atmospheric dispersion modeling , task (project management) , quality (philosophy) , industrial engineering , risk analysis (engineering) , engineering , systems engineering , mechanics , aerospace engineering , geography , air pollution , physics , medicine , chemistry , archaeology , organic chemistry , optics , operating system , quantum mechanics
Numerical models are widely used to predict wind flow and pollutant dispersion in industrial and urban landscapes. Many of them are already commercially available and are being applied by consulting engineers to complex real world problems. There is, however, some doubt about the evaluation of these models and the quality of predictions. This paper attempts to give a critical assessment of the current state of model evaluation, thereby focusing on the most important step of the evaluation procedure: the comparison of model predictions with data. It goes without saying that the result of this process will only be as good as the reference data used. By using obstacle resolving CFD models it is shown that it is not an easy task to provide data that can be regarded as a reliable standard.