Synthetic-eddy method for urban atmospheric flow modelling

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

doi:10.1007/s10546-010-9508-x

Synthetic-eddy method for urban atmospheric flow modelling

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

Engineering

Imperial College London

Research output: Contribution to journal › Article › peer-review

21 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 language	English
Pages (from-to)	285-299
Number of pages	15
Journal	Boundary-Layer Meteorology
Volume	136
Issue number	2
DOIs	https://doi.org/10.1007/s10546-010-9508-x
Publication status	Published - Aug 2010

Keywords

adaptive mesh
inlet boundary conditions
large-eddy simulation

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title = "Synthetic-eddy method for urban atmospheric flow modelling",

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.",

keywords = "adaptive mesh, inlet boundary conditions, large-eddy simulation",

author = "Dimitrios Pavlidis and Gorman, {Gerard J.} and Gomes, {Jefferson L. M. A.} and Pain, {Christopher C.} and Helen ApSimon",

year = "2010",

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AU - Pavlidis, Dimitrios

AU - Gorman, Gerard J.

AU - Gomes, Jefferson L. M. A.

AU - Pain, Christopher C.

AU - ApSimon, Helen

PY - 2010/8

Y1 - 2010/8

N2 - 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.

AB - 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.

KW - adaptive mesh

KW - inlet boundary conditions

KW - large-eddy simulation

U2 - 10.1007/s10546-010-9508-x

DO - 10.1007/s10546-010-9508-x

M3 - Article

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SP - 285

EP - 299

JO - Boundary-Layer Meteorology

JF - Boundary-Layer Meteorology

IS - 2

ER -

Synthetic-eddy method for urban atmospheric flow modelling

Abstract

Keywords

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