Quantifying impacts of wind speed and urban neighborhood layout on the infiltration rate of residential buildings

Review on pollutant dispersion in urban areas-part A: Effects of mechanical factors and urban morphology

“…Typically, planar urban density at the neighborhood scale is described by the building coverage ratio (BCR) (also known as planar area density λp [165]), which is the ratio of the buildings' footprint area to the total area under consideration [166] (Fig. 10 (a)).…”

Large eddy simulation of sneeze plumes and particles in a poorly ventilated outdoor air condition: A case study of the University of Houston main campus

“…Such fluidal movements of fresh and old air are often affected by complex urban morphology that varies with different coordinations of obstructing structures and features (e.g., buildings and corridors in between). There have been extensive efforts to produce more realistic representations of urban surface features that can affect ventilation efficiency by using generic buildings in tangible and digital forms crafted and generated based on the ground- and satellite-based light detection and ranging (LIDAR) measurements supported by computer-aided design (CAD) techniques ( Farea et al, 2015 ; Mohammadi and Calautit, 2021 ; Juan et al, 2022 ; Hadavi and Pasdarshahri, 2020 ; Brozovsky et al, 2021 ; Liu et al, 2019 ; Nikkho et al, 2017 ). Supported by such enhanced details of urban aerodynamics available for use, many CFD studies have effectively captured near-surface airflows and the consequent dispersion of air pollutants in outdoor environments supported by turbulence schemes, such as the Reynolds-Averaged Navier-Strokes (RANS) model ( Ding and Lam, 2019 ; Buccolieri et al, 2015 ; San Jose et al, 2021 ; Hadžiabdić et al, n.d. ) and Unsteady RANS (URANS) model ( Gousseau et al, 2011 ; Rajasekarababu et al, 2022 ).…”

Infiltration in a Complex Building

“…La capa límite atmosférica genera mayores velocidades del viento en los niveles superiores de los edificios, mientras los obstáculos eólicos (edificios, vegetación, etc.) de los alrededores modifican la presión ejercida sobre la envolvente [6]. Cuanto más expuesto a la acción del viento se encuentra un edificio, mayor es la infiltración de aire.…”