Articles | Volume 13, issue 3
https://doi.org/10.5194/gmd-13-937-2020
© Author(s) 2020. 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-13-937-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Model description paper
| 
06 Mar 2020
Model description paper |
| 06 Mar 2020
| 06 Mar 2020
A one-dimensional model of turbulent flow through “urban” canopies (MLUCM v2.0): updates based on large-eddy simulation
Faculty of Built Environment, University of New South Wales, Sydney, Australia
E. Scott Krayenhoff
School of Environmental Sciences, University of Guelph, Guelph, Canada
Alberto Martilli
Center for Research on Energy, Technology and Environment (CIEMAT), Madrid, Spain
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Cited
51 citations as recorded by crossref.
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- Modeling and analysis of the effects of barrier height on automobiles emission dispersion A. Issakhov & P. Omarova 10.1016/j.jclepro.2021.126450
- Assessing the Internal Variability of Large-Eddy Simulations for Microscale Pollutant Dispersion Prediction in an Idealized Urban Environment E. Lumet et al. 10.1007/s10546-023-00853-7
- Using Machine Learning to Predict Urban Canopy Flows for Land Surface Modeling Y. Lu et al. 10.1029/2022GL102313
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- Parameterizing urban canopy radiation transfer using three-dimensional urban morphological parameters S. Mei et al. 10.1016/j.uclim.2025.102363
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- Efficient city-scale wind mapping from building morphology: A CFD-based parameterization scheme J. Niu et al. 10.1016/j.scs.2025.106688
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- On the Parameterization of the Mean Wind Profile for Urban Canopy Models M. Tarasova et al. 10.1134/S1995080224603801
- A comprehensive indoor–outdoor urban climate model with hydrology: The Vertical City Weather Generator (VCWG v2.0.0) M. Moradi et al. 10.1016/j.buildenv.2021.108406
- Novel Geometric Parameters for Assessing Flow Over Realistic Versus Idealized Urban Arrays J. Lu et al. 10.1029/2022MS003287
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- Investigating the influence of stepped roofs on wind dynamics using large eddy simulation H. Jiao & T. Takemi 10.1016/j.buildenv.2024.111819
- Studies of Stable Stratification Effect on Dynamic and Thermal Roughness Lengths of Urban-Type Canopy Using Large-Eddy Simulation A. Glazunov et al. 10.1175/JAS-D-22-0044.1
- The Vertical City Weather Generator (VCWG v1.3.2) M. Moradi et al. 10.5194/gmd-14-961-2021
- Investigation of a Geometric Parameter Corresponding to the Turbulent Length Scale Within an Urban Canopy Layer T. Sato & H. Kusaka 10.1007/s10546-023-00832-y
- Turbulence Characteristics Across a Range of Idealized Urban Canopy Geometries L. Blunn et al. 10.1007/s10546-021-00658-6
- A multi-layer urban canopy meteorological model with trees (BEP-Tree): Street tree impacts on pedestrian-level climate E. Krayenhoff et al. 10.1016/j.uclim.2020.100590
- Data-driven real-time visualization of urban heat islands using mean radiant temperature for urban design Z. Rashtian et al. 10.1016/j.enbuild.2025.115470
- How Do Trees Affect the Microclimate of Urban Streets? Observations and Numerical Evaluation in a Highly Compact City R. Segura et al. 10.2139/ssrn.4143348
51 citations as recorded by crossref.
- Mapping drag coefficient using CFD and machine learning with application to urban canopy model J. Chen et al. 10.1016/j.scs.2025.106719
- Development of a morphology-based wind speed model in the urban roughness sub-layer Q. Gao et al. 10.1016/j.jweia.2024.105871
- Experimental study of urban microclimate on scaled street canyons with various aspect ratios J. Hang & G. Chen 10.1016/j.uclim.2022.101299
- Parameterization of the Interaction between the Atmosphere and the Urban Surface: Current State and Prospects M. Tarasova et al. 10.1134/S0001433823020068
- Machine learning predicts pedestrian wind flow from urban morphology and prevailing wind direction J. Lu et al. 10.1088/1748-9326/adc148
- A one-dimensional urban flow model with an eddy-diffusivity mass-flux (EDMF) scheme and refined turbulent transport (MLUCM v3.0) J. Lu et al. 10.5194/gmd-17-2525-2024
- Improving the Energy Efficiency of Buildings Based on Fluid Dynamics Models: A Critical Review X. Lü et al. 10.3390/en14175384
- Assessment of the dispersion of pollutants from automobile exhaust, taking into account relative humidity, pavement temperature, wind direction and speed, which varies depending on the time of day A. Issakhov & A. Abylkassymova 10.1016/j.icheatmasstransfer.2024.108140
- Modeling and analysis of the effects of barrier height on automobiles emission dispersion A. Issakhov & P. Omarova 10.1016/j.jclepro.2021.126450
- Assessing the Internal Variability of Large-Eddy Simulations for Microscale Pollutant Dispersion Prediction in an Idealized Urban Environment E. Lumet et al. 10.1007/s10546-023-00853-7
- Using Machine Learning to Predict Urban Canopy Flows for Land Surface Modeling Y. Lu et al. 10.1029/2022GL102313
- Parameterization of Interaction between the Atmosphere and the Urban Surface: Current State and Prospects M. Tarasova et al. 10.31857/S0002351523020062
- WRF-Comfort: simulating microscale variability in outdoor heat stress at the city scale with a mesoscale model A. Martilli et al. 10.5194/gmd-17-5023-2024
- Mean wind speed profile parameterisation over an urban canopy with building height variability K. Nakao et al. 10.1016/j.uclim.2025.102469
- Budgets of Second-Order Turbulence Moments over a Real Urban Canopy E. Akinlabi et al. 10.1007/s10546-023-00816-y
- Parameterizing urban canopy radiation transfer using three-dimensional urban morphological parameters S. Mei et al. 10.1016/j.uclim.2025.102363
- Bridging the Urban Canopy Sublayer to Aerodynamic Parameters of the Atmospheric Surface Layer Q. Li & G. Katul 10.1007/s10546-022-00723-8
- Scaling of Flows Over Realistic Urban Geometries: A Large-Eddy Simulation Study W. Cheng & Y. Yang 10.1007/s10546-022-00749-y
- Evaluation of multi-layer urban canopy model (MLUCM) for urban microclimate predictions at different urban contexts G. Setyantho et al. 10.1016/j.uclim.2024.101882
- Large-Eddy Simulation of Reynolds Stress Budgets in and Above Forests in Neutral Atmospheric Boundary Layers H. Su & K. Paw U 10.1007/s10546-022-00758-x
- Influence of blockage ratios in shaping wind dynamics in urban environments G. Tian et al. 10.1016/j.jweia.2025.106008
- Recent Progress and Challenges in Microscale Urban Heat Modeling and Measurement for Urban Engineering Applications S. Dey & Y. Joshi 10.1115/1.4056054
- A conceptual model for a generalized canopy parametrization for atmospheric models G. Cheng & K. Schlünzen 10.1002/qj.4420
- A Simple Mixing-Length Model for Urban Canopy Flows W. Cheng & F. Porté-Agel 10.1007/s10546-021-00650-0
- Statistical analysis of the organized turbulence structure in the inertial and roughness sublayers over real urban area by building-resolved large-eddy simulation L. Yao et al. 10.1016/j.buildenv.2021.108464
- Dispersive Fluxes Within and Over a Real Urban Canopy: A Large-Eddy Simulation Study E. Akinlabi et al. 10.1007/s10546-022-00725-6
- Neutral Boundary Layer Urban Dispersion in Scaled Uniform and Nonuniform Residential Building Arrays J. Retter et al. 10.1007/s10546-024-00891-9
- Representing the effects of building height variability on urban canopy flow J. Lu et al. 10.1002/qj.4584
- Efficient city-scale wind mapping from building morphology: A CFD-based parameterization scheme J. Niu et al. 10.1016/j.scs.2025.106688
- Drag Coefficient and Turbulence Mixing Length of Local Climate Zone-Based Urban Morphologies Derived Using Obstacle-Resolving Modelling T. Nagel et al. 10.1007/s10546-022-00780-z
- How do street trees affect urban temperatures and radiation exchange? Observations and numerical evaluation in a highly compact city R. Segura et al. 10.1016/j.uclim.2022.101288
- Three-dimensional large eddy simulation urban neighborhood model with updated building drag coefficient and universal multiscale Smagorinsky model Q. Shui et al. 10.1063/5.0216385
- Impact of urban canopy characteristics on turbulence dynamics: Insights from large eddy simulation G. Tian et al. 10.1016/j.buildenv.2024.111183
- Barriers to urban hydrometeorological simulation: a review X. Chen et al. 10.5194/hess-29-3447-2025
- Improving the accuracy of simplified urban canopy models for arid regions using site-specific prior information A. Afshari & N. Ramirez 10.1016/j.uclim.2020.100722
- Cooling hot cities: a systematic and critical review of the numerical modelling literature E. Krayenhoff et al. 10.1088/1748-9326/abdcf1
- Wind Extremes over Built Terrain: Characterization and Geometric Determinants J. Wang et al. 10.1007/s10546-025-00899-9
- Improving Surface Wind Speed Forecasts Using an Offline Surface Multilayer Model With Optimal Ground Forcing J. Feng et al. 10.1029/2022MS003072
- On the Parameterization of the Mean Wind Profile for Urban Canopy Models M. Tarasova et al. 10.1134/S1995080224603801
- A comprehensive indoor–outdoor urban climate model with hydrology: The Vertical City Weather Generator (VCWG v2.0.0) M. Moradi et al. 10.1016/j.buildenv.2021.108406
- Novel Geometric Parameters for Assessing Flow Over Realistic Versus Idealized Urban Arrays J. Lu et al. 10.1029/2022MS003287
- Accelerating urban street canyon wind flow predictions with deep learning method W. Cheng & T. Fu 10.1007/s12273-025-1243-9
- Numerical analysis of solid barrier heights and trees with porosity properties influence on the automobile's emission dispersion in the residential area A. Issakhov & A. Abylkassymova 10.1016/j.ecolmodel.2023.110395
- Investigating the influence of stepped roofs on wind dynamics using large eddy simulation H. Jiao & T. Takemi 10.1016/j.buildenv.2024.111819
- Studies of Stable Stratification Effect on Dynamic and Thermal Roughness Lengths of Urban-Type Canopy Using Large-Eddy Simulation A. Glazunov et al. 10.1175/JAS-D-22-0044.1
- The Vertical City Weather Generator (VCWG v1.3.2) M. Moradi et al. 10.5194/gmd-14-961-2021
- Investigation of a Geometric Parameter Corresponding to the Turbulent Length Scale Within an Urban Canopy Layer T. Sato & H. Kusaka 10.1007/s10546-023-00832-y
- Turbulence Characteristics Across a Range of Idealized Urban Canopy Geometries L. Blunn et al. 10.1007/s10546-021-00658-6
- A multi-layer urban canopy meteorological model with trees (BEP-Tree): Street tree impacts on pedestrian-level climate E. Krayenhoff et al. 10.1016/j.uclim.2020.100590
- Data-driven real-time visualization of urban heat islands using mean radiant temperature for urban design Z. Rashtian et al. 10.1016/j.enbuild.2025.115470
- How Do Trees Affect the Microclimate of Urban Streets? Observations and Numerical Evaluation in a Highly Compact City R. Segura et al. 10.2139/ssrn.4143348
Latest update: 13 Aug 2025
Short summary
We present an update to the Multi-Layer Urban Canopy Model by revisiting the parameterization of length scales based on high-resolution and validated large-eddy simulations. Additionally, the inclusion of dispersive fluxes in the parameterization schemes are also discussed. The results demonstrate that updated parameterizations improve the accuracy of the vertical exchange of momentum in the street canyon.
We present an update to the Multi-Layer Urban Canopy Model by revisiting the parameterization of...
