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Large Scale Urban Simulations with FCT

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Flux-Corrected Transport

Part of the book series: Scientific Computation ((SCIENTCOMP))

Abstract

Airborne contaminant transport in cities presents challenging new requirements for CFD. The unsteady flow physics is complicated by very complex geometry, multi-phase particle and droplet effects, radiation, latent and sensible heating effects, and buoyancy effects. Turbulence is one of the most important of these phenomena and yet the overall problem is sufficiently difficult that the turbulence must be included efficiently with an absolute minimum of extra memory and computing time. This paper describes the Monotone Integrated Large Eddy Simulation (MILES) methodology used in NRL’s FAST3D-CT simulation model for urban contaminant transport (CT) (see Boris in Comput. Sci. Eng. 4:22–32, 2002 and references therein). We also describe important extensions of the underlying Flux-Corrected Transport (FCT) convection algorithms to further reduce numerical dissipation in narrow channels (streets).

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Acknowledgements

The authors wish to thank Bob Doyle and the many members of NRL’s LCP&FD for helpful technical discussions and scientific contributions to this effort. Further thanks are expressed to the members of the Environmental Wind Tunnel Laboratory at the University of Hamburg that contributed to the work within the Hamburg Pilot Project. Aspects of the work presented here were supported by ONR through NRL, the DoD High Performance Computing Modernization Office, DARPA, MDA and the German Federal Office of Civil Protection and Disaster Assistance (BBK) as well as the City of Hamburg, Germany.

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Authors and Affiliations

  1. LCP&FD, Naval Research Laboratory, Washington, DC, 20375, USA

    Gopal Patnaik & Jay P. Boris

  2. X-Computational Physics Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA

    Fernando F. Grinstein

  3. University of Wisconsin Platteville, Platteville, WI, 53818, USA

    John P. Iselin

  4. Meteorological Institute, University of Hamburg, 20146, Hamburg, Germany

    Denise Hertwig

Authors
  1. Gopal Patnaik
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  2. Jay P. Boris
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  3. Fernando F. Grinstein
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  4. John P. Iselin
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  5. Denise Hertwig
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Corresponding author

Correspondence to Gopal Patnaik .

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Editors and Affiliations

  1. , Chair of Applied Mathematics III, University of Erlangen-Nuremberg, Haberstr. 2, Erlangen, 91058, Germany

    Dmitri Kuzmin

  2. , School of Computational Sciences, George Mason University, 4400 University Drive MS 6A2, Fairfax, 22030, Virginia, USA

    Rainald Löhner

  3. Institute of Applied Mathematics, LS III, Dortmund University of Technology, Vogelpothsweg 87, Dortmund, 44227, Germany

    Stefan Turek

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© 2012 Springer Science+Business Media Dordrecht

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Patnaik, G., Boris, J.P., Grinstein, F.F., Iselin, J.P., Hertwig, D. (2012). Large Scale Urban Simulations with FCT. In: Kuzmin, D., Löhner, R., Turek, S. (eds) Flux-Corrected Transport. Scientific Computation. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-4038-9_4

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