Synthetic-eddy method for urban atmospheric flow modelling

Dimitrios Pavlidis, Gerard J. Gorman, Jefferson L. M. A. Gomes, Christopher C. Pain, Helen ApSimon

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The computational fluid dynamics code Fluidity, with anisotropic mesh adaptivity, is used as a multi-scale obstacle-accommodating meteorological model. A novel method for generating realistic inlet boundary conditions based on the view of turbulence as a superposition of synthetic eddies is adopted. It is able to reproduce prescribed first-order and second-order one-point statistics and turbulence length scales. The aim is to simulate an urban boundary layer. The model is validated against two standard benchmark tests: a plane channel flow numerical simulation and a flow past a cube physical simulation. The performed large-eddy simulations are in good agreement with both reference models giving confidence that the model can be used to successfully simulate urban atmospheric flows.
Original languageEnglish
Pages (from-to)285-299
Number of pages15
JournalBoundary-Layer Meteorology
Volume136
Issue number2
DOIs
Publication statusPublished - Aug 2010

Keywords

  • adaptive mesh
  • inlet boundary conditions
  • large-eddy simulation

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