The influence of building geometry on street canyon air flow: validation of large eddy simulations against wind tunnel experiments
This study investigates the effect of roof and façade geometry on the mean wind flow and
turbulence in street canyons, as well as the ability of numerical simulation techniques in …
turbulence in street canyons, as well as the ability of numerical simulation techniques in …
Turbulent kinetic energy budget in the boundary layer developing over an urban-like rough wall using PIV
In the present work, a boundary layer developing over a rough-wall consisting of staggered
cubes with a plan area packing density λ p= 25% is studied within the wind tunnel using …
cubes with a plan area packing density λ p= 25% is studied within the wind tunnel using …
Particle image velocimetry measurement and CFD simulation of pedestrian level wind environment around U-type street canyon
The configuration of an urban street canyon plays an important role in determining local
microclimate including pedestrian level wind environment (PLWE). The semi-closed U-type …
microclimate including pedestrian level wind environment (PLWE). The semi-closed U-type …
Non-linear interactions in a boundary layer developing over an array of cubes using stochastic estimation
K Blackman, L Perret - Physics of Fluids, 2016 - pubs.aip.org
In the present work, a boundary layer developing over a rough-wall consisting of staggered
cubes with a plan area packing density, λ p= 25%, is studied within a wind tunnel using …
cubes with a plan area packing density, λ p= 25%, is studied within a wind tunnel using …
Ventilation processes in a three-dimensional street canyon
Š Nosek, L Kukačka, R Kellnerová, K Jurčáková… - Boundary-layer …, 2016 - Springer
The ventilation processes in three different street canyons of variable roof geometry were
investigated in a wind tunnel using a ground-level line source. All three street canyons were …
investigated in a wind tunnel using a ground-level line source. All three street canyons were …
Modelling of street-scale pollutant dispersion by coupled simulation of chemical reaction, aerosol dynamics, and CFD
In the urban environment, gas such as nitrogen dioxide NO 2, and particles impose adverse
impacts on pedestrians' health. The conventional computational fluid dynamics (CFD) …
impacts on pedestrians' health. The conventional computational fluid dynamics (CFD) …
Influence of street trees on turbulent fluctuations and transport processes in an urban canyon: a wind tunnel study
The presence of vegetation within urban canyons leads to non-trivial patterns of the
concentration of airborne pollutants, as a result of the complex structure of the velocity field …
concentration of airborne pollutants, as a result of the complex structure of the velocity field …
Near-bed velocity and shear stress of open-channel flow over surface roughness
J Li, SS Li - Environmental Fluid Mechanics, 2020 - Springer
Near-bed flows in rough-bed open-channels are of relevance to river engineering,
freshwater ecology and hydraulic design. Detailed measurements of near-bed flow velocity …
freshwater ecology and hydraulic design. Detailed measurements of near-bed flow velocity …
Field and wind tunnel modeling of an idealized street canyon flow
The present work examines the flow field in a simple street canyon that has been modeled at
full-scale and at 1: 200 scale in a wind tunnel. It relies on the detailed analysis of statistics of …
full-scale and at 1: 200 scale in a wind tunnel. It relies on the detailed analysis of statistics of …
Effects of the upstream-flow regime and canyon aspect ratio on non-linear interactions between a street-canyon flow and the overlying boundary layer
Large-scale structures within a rough-wall boundary layer generated over a cube array have
recently been linked to small-scale fluctuations close to the roughness through a dynamical …
recently been linked to small-scale fluctuations close to the roughness through a dynamical …