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uDALES: large-eddy-simulation software for urban flow, dispersion, and microclimate modelling

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Title: uDALES: large-eddy-simulation software for urban flow, dispersion, and microclimate modelling
Authors: Grylls, T
Suter, I
Sützl, B
Owens, S
Meyer, D
Van Reeuwijk, M
Item Type: Journal Article
Abstract: With continuing urbanization, challenges associated with the urban environment such as air quality, heat islands, pedestrian thermal comfort, and wind loads on tall buildings, are increasingly relevant. Our ability to realistically capture processes such as the transport of heat, moisture, momentum and pollutants, and those of radiative transfer in urban environments is key to understanding and facing these challenges (Oke et al., 2017). The turbulent nature of the urban flow field and the inherent heterogeneity and wide range of scales associated with the urban environment result in a complex modelling problem. Large-eddy simulation (LES) is an approach to turbulence modelling used in computational fluid dynamics to simulate turbulent flows over a wide range of spatial and temporal scales. LES is one of the most promising tools to model the interactions typical of urban areas due to its ability to resolve the urban flow field at resolutions of O(1 m, 0.1 s), over spatial domains of O(100 m), and time periods of O(10 h). Although there are many scalable LES models for atmospheric flows, to our knowledge, only few are capable of explicitly representing buildings and of modelling the full range of urban processes (e.g. PALM-4U Resler et al. (2017); Maronga et al. (2020); or OpenFoam Weller et al. (1998)).
Issue Date: 25-Jul-2021
Date of Acceptance: 1-Jul-2021
URI: http://hdl.handle.net/10044/1/91693
DOI: 10.21105/joss.03055
ISSN: 2475-9066
Publisher: Open Journals
Start Page: 1
End Page: 4
Journal / Book Title: Journal of Open Source Software
Volume: 6
Issue: 63
Copyright Statement: © 2021 The Author(s). Authors of papers retain copyright and release the work under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Publication Status: Published
Online Publication Date: 2021-07-25
Appears in Collections:Civil and Environmental Engineering



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