caa a22 4500 445874732 CHVBK 20180317145524.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10652-011-9211-6 doi (NATIONALLICENCE)springer-10.1007/s10652-011-9211-6 A CFD-based wind solver for an urban fast response transport and dispersion model [Elektronische Daten] [Akshay Gowardhan, Eric Pardyjak, Inanc Senocak, Michael Brown] In many cities, ambient air quality is deteriorating leading to concerns about the health of city inhabitants. In urban areas with narrow streets surrounded by clusters of tall buildings, called street canyons, air pollution from traffic emissions and other sources may accumulate resulting in high pollutant concentrations. For various situations, including the evacuation of populated areas in the event of an accidental or deliberate release of chemical, biological and radiological agents, it is important that models should be developed that produce urban flow fields quickly. Various computational techniques have been used to calculate these flow fields, but these techniques are often computationally intensive. Most fast response models currently in use are at a disadvantage in these cases as they are unable to correlate highly heterogeneous urban structures with the diagnostic parameterizations on which they are based. In this paper, a novel variant of the popular projection method for solving the Navier-Stokes equations has been developed and applied to produce fast and reasonably accurate parallel computational fluid dynamics (CFD) solutions for flow in complex urban areas. This model, called QUIC-CFD represents an intermediate balance between fast (on the order of minutes for a several block problem) and reasonably accurate solutions. This paper details the solution procedure and validates this model for various simple and complex urban geometries. Springer Science+Business Media B.V., 2011 Fast-response nationallicence Urban dispersion modeling nationallicence Computational fluid dynamics nationallicence Reynolds-averaged Navier-Stokes equations nationallicence Flow around buildings nationallicence Gowardhan Akshay Department of Mechanical Engineering, University of Utah, 84112, Salt Lake City, UT, USA aut Pardyjak Eric Department of Mechanical Engineering, University of Utah, 84112, Salt Lake City, UT, USA aut Senocak Inanc Department of Mechanical and Biomedical Engineering, Boise State University, 83725, Boise, ID, USA aut Brown Michael Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut Environmental Fluid Mechanics Springer Netherlands 11/5(2011-10-01), 439-464 1567-7419 11:5<439 2011 11 10652 https://doi.org/10.1007/s10652-011-9211-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10652-011-9211-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gowardhan Akshay Department of Mechanical Engineering, University of Utah, 84112, Salt Lake City, UT, USA aut NATIONALLICENCE 700 1- Pardyjak Eric Department of Mechanical Engineering, University of Utah, 84112, Salt Lake City, UT, USA aut NATIONALLICENCE 700 1- Senocak Inanc Department of Mechanical and Biomedical Engineering, Boise State University, 83725, Boise, ID, USA aut NATIONALLICENCE 700 1- Brown Michael Los Alamos National Laboratory, 87545, Los Alamos, NM, USA aut NATIONALLICENCE 773 0- Environmental Fluid Mechanics Springer Netherlands 11/5(2011-10-01), 439-464 1567-7419 11:5<439 2011 11 10652 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer