Articles | Volume 15, issue 13
https://doi.org/10.5194/gmd-15-5309-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-15-5309-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Development and technical paper
| 
13 Jul 2022
Development and technical paper |
| 13 Jul 2022
| 13 Jul 2022
uDALES 1.0: a large-eddy simulation model for urban environments
Ivo Suter
Department of Civil and Environmental Engineering, Imperial College London, London, UK
Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
Tom Grylls
Department of Civil and Environmental Engineering, Imperial College London, London, UK
Birgit S. Sützl
Department of Civil and Environmental Engineering, Imperial College London, London, UK
Chair of Building Physics, ETH, Zürich, Switzerland
Sam O. Owens
Department of Civil and Environmental Engineering, Imperial College London, London, UK
Chris E. Wilson
Department of Civil and Environmental Engineering, Imperial College London, London, UK
Maarten van Reeuwijk
CORRESPONDING AUTHOR
Department of Civil and Environmental Engineering, Imperial College London, London, UK
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- Is applying heat-reflective paint to every building and sidewalk in a city a cool solution? E. Velasco https://doi.org/10.1016/j.scsadv.2026.100043
- Quantification of Uncertainties of Radiative Transfer Calculation in Urban Canopy Models R. Schoetter et al. https://doi.org/10.1007/s10546-023-00827-9
- Building-scale wind field simulation by lattice Boltzmann method-based large-eddy simulation S. Kong et al. https://doi.org/10.1016/j.uclim.2026.102938
- Machine learning framework for high-resolution air temperature downscaling using LiDAR-derived urban morphological features F. Chajaei & H. Bagheri https://doi.org/10.1016/j.uclim.2024.102102
- Traditional and novel approaches to studying the human thermal environment in urban areas: A critical review of the current state of the art M. Lehnert et al. https://doi.org/10.37040/geografie.2023.012
- Evaluation of an immersed boundary numerical framework to address the wind field in complex urban topographies P. Vanky et al. https://doi.org/10.1016/j.buildenv.2024.112036
- Large-eddy simulation of a diurnal cycle in a coastal urban environment S. Owens et al. https://doi.org/10.1016/j.buildenv.2025.112999
- Effects of street plants on atmospheric particulate dispersion in urban streets: A review X. Wang et al. https://doi.org/10.1139/er-2023-0103
- Performance of PALM-4U/WRF model for simulating the urban meteorology of King Abdullah University of Science and Technology (KAUST), Saudi Arabia R. Thiruridathil et al. https://doi.org/10.1016/j.uclim.2024.102162
- Implementation of a dry deposition module (DEPAC v3.11_ext) in a large eddy simulation code (DALES v4.4) L. Geers et al. https://doi.org/10.5194/gmd-18-6647-2025
- Numerical Simulations of Boundary-Layer Airflow Over Pitched-Roof Buildings M. Coburn et al. https://doi.org/10.1007/s10546-022-00738-1
- A conservative immersed boundary method for the multi-physics urban large-eddy simulation model uDALES v2.0 S. Owens et al. https://doi.org/10.5194/gmd-17-6277-2024
- Reliability of urban microclimate simulations: spatio-temporal validation through intra-urban canyon transects for outdoor thermal comfort analysis B. De Quadros et al. https://doi.org/10.1007/s00484-024-02784-5
- Multi-scale Analysis of Flow over Heterogeneous Urban Environments M. van Reeuwijk & J. Huang https://doi.org/10.1007/s10546-025-00941-w
- Towards climate-responsible tree positioning: Detailed effects of trees on heat exposure in complex urban environments Z. Janků et al. https://doi.org/10.1016/j.ufug.2024.128500
- Challenges of constructing and selecting the “perfect” boundary conditions for the large-eddy simulation model PALM J. Radović et al. https://doi.org/10.5194/gmd-17-2901-2024
- Numerical simulation to assess the impact of urban green infrastructure on building energy use: A review S. Zhu et al. https://doi.org/10.1016/j.buildenv.2022.109832
- Microscale to neighbourhood scale: Impact of shading on urban climate C. Wilson et al. https://doi.org/10.1016/j.buildenv.2025.112721
- High-fidelity simulation of the effects of street trees, green roofs and green walls on the distribution of thermal exposure in Prague-Dejvice J. Geletič et al. https://doi.org/10.1016/j.buildenv.2022.109484
- Impact of nucleation mode traffic emission on modelled high-resolution particle number concentrations in Beijing X. Li et al. https://doi.org/10.1016/j.aeaoa.2026.100453
- Spatial and temporal validation of urban microclimate simulations B. Quadros et al. https://doi.org/10.1590/s1678-86212025000100895
- The drag length is key to quantifying tree canopy drag D. Majumdar et al. https://doi.org/10.1016/j.jweia.2025.106084
- Uncertainty in urban climate modeling: Bridging the gap between science and policy G. Kermarrec et al. https://doi.org/10.1371/journal.pclm.0000743
- Three-dimensional pollutant dispersion in tree-lined urban canyons: Combined wind-tunnel and LES analysis S. Fellini et al. https://doi.org/10.1016/j.atmosenv.2025.121748
- Heat exposure variations and mitigation in a densely populated neighborhood during a hot day: Towards a people-oriented approach to urban climate management J. Geletič et al. https://doi.org/10.1016/j.buildenv.2023.110564
Saved (final revised paper)
Latest update: 09 Jun 2026
Short summary
Cities are increasingly moving to the fore of climate and air quality research due to their central role in the population’s health and well-being, while suitable models remain scarce. This article describes the development of a new urban LES model, which allows examining the effects of various processes, infrastructure and vegetation on the local climate and air quality. Possible applications are demonstrated and a comparison to an experiment is shown.
Cities are increasingly moving to the fore of climate and air quality research due to their...
