A COMPARATIVE STUDY OF TWO-EQUATION TURBULENCE MODELS FOR SIMULATING MICROSCALE WIND FLOW

Numerical modelling of turbulence plays a crucial role in providing accurate microscale wind fields, which are necessary to reliably predict transport and dispersion of pollutants in the vicinity of buildings. Although more elaborate turbulence models have been developed, two-equation turbulence models are widely applied in atmospheric flow and dispersion models. The large CPU time required for direct numerical simulation (DNS) and large eddy simulation (LES) still prohibits their application to microscale wind flow simulations of practical interest. In this study, the results obtained by the microscale model MIMO for the three-dimensional flow around a surface mounted cubical obstacle, using different two-equation turbulence models, are discussed. The accuracy of the investigated turbulence models is assessed by comparing the numerical results with wind tunnel measurements.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09574352
• Corporate Authors:

  Inderscience Enterprises Limited

  17 Beeward Close, Wolverton Mill
  Milton Keynes MK 12 6LJ,   England 
• Authors:
  • Ehrhard, J
  • Kunz, R
  • MOUSSIOPOULOS, N
• Conference:
  • Fifth Workshop on Harmonization within Atmospheric Dispersion Modelling for Regulatory Purposes
  • Location: Rhodes, Greece
  • Date: 1998-5-18 to 1998-5-21
• Publication Date: 2000

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 517-525
• Serial:
  • International Journal of Environment and Pollution
  • Volume: 14
  • Issue Number: 1-6
  • Publisher: Inderscience Enterprises Limited
  • ISSN: 0957-4352

Subject/Index Terms

• TRT Terms: Atmospheric phenomena; Mathematical models; Pollutants; Simulation; Structures; Turbulence; Wind; Wind tunnels
• Uncontrolled Terms: Microscale wind flow
• Subject Areas: Bridges and other structures; Highways; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00803546
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 3 2001 12:00AM