Modelling The Mean Velocity Profile In The Urban Canopy Layer

By R. Macdonald. 2000

365 citations recorded by the source corpus.

Subfields: Atmospheric Science, Earth-Surface Processes, Environmental Engineering

View Paper: https://www.semanticscholar.org/paper/d89a8b1c515a477491b0ed4ab0db5dce6c919e14

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Citations in the corpus

Parametrization of Drag and Turbulence for Urban Neighbourhoods with Trees (2015, background): “Simple mixing-length models for vegetation canopies originated with Cionco (1965), and these ideas were later extended to urban canopies (Macdonald 2000; Coceal and Belcher 2004).”
Momentum Transfer within Canopies (2008, methodology): “Many observations show that the attenuation coefficient (cid:15) is related to the LAI (Cionco 1972; Jackson 1981; Macdonald 2000).”
Channel flow over large cube roughness: a direct numerical simulation study (2010, background): “On the other hand, Macdonald (2000) reported yo/h values from boundary layer experiments over the same surface and his results (not shown here) are higher than the present data (and those of Cheng et al. 2007) and they also suggest a peak yo/h at a rather higher value of λp (about 0.18).”
A Dynamic Urban Canopy Parameterization for Mesoscale Models Based on Computational Fluid Dynamics Reynolds-Averaged Navier–Stokes Microscale Simulations (2010, background): “Cd = Cd (z) ,( Macdonald 2000; Santiago et al. 2008).”
Large-Eddy Simulation of the Atmospheric Boundary Layer (2020, background): “…climate prediction (Teixeira et al. 2008; Holtslag et al. 2013), agricultural water use and productivity (Brutsaert 1982), the dispersion of pollen and spores in natural and agricultural systems (Mahaffee and Stoll 2016), urban air quality and energy use (Pardyjak and Stoll 2017), and many others.”
Exponential roughness layer and analytical model for turbulent boundary layer flow over rectangular-prism roughness elements (2016, methodology): “Examples include the approach of Macdonald (2000), requiring an attenuation factor to be specified a priori as a function of the solidity λf =Af /AT (where Af and AT are the projected frontal and horizontal lot areas respectively), while Coceal & Belcher (2004) employ an empirical function to model…”
Adjustment of a turbulent boundary layer to a canopy of roughness elements (2003, background): “At height z, the sectional drag coefficient, cd(z), is defined, following MacDonald (2000), to be the drag at height z divided by half the square of the spatially averaged time-mean wind at that height, U 2(z)/2, multiplied by the frontal width (per unit floor area) presented to the flow by the…”
Mean Flow and Turbulence Statistics Over Groups of Urban-like Cubical Obstacles (2006, positive): “( Macdonald 2000 ) is an important parameter used in distributed canopy drag models (Martilli et al. 2002; Coceal and Belcher 2004, 2005).”
Numerical Investigations of Mean Winds Within Canopies of Regularly Arrayed Cubical Buildings Under Neutral Stability Conditions (2009, methodology): “Figure 8 shows the variation of aMacdonald, a5m ,a ndainc, which are the attenuation coefficients in Table 1 of Macdonald (2000) and those obtained by the least-squares fit of Eq. 1 to the profiles of � u� 5m and � u� inc, respectively, with λ p of arrays of cubical blocks.”
Oscillatory flow through submerged canopies: 1. Velocity structure (2005, background): “In general, these studies can be broken down into two categories: flow through urban-like roughness [e.g., Macdonald, 2000; Britter and Hanna, 2003; Coceal and Belcher, 2004] and flow through vegetative canopies [e.g., Nepf and Vivoni, 2000; Finnigan, 2000; Ghisalberti and Nepf, 2002].”