Wind conditions in urban layout – Numerical and experimental research

Abstract

Abstract. This paper presents research which compares the numerical and the experimental results for different cases of airflow around a few urban layouts. The study is concerned mostly with the analysis of parameters, such as pressure and velocity fields, which are essential in the building industry. Numerical simulations have been performed by the commercial software Fluent, with the use of a few different turbulence models, including popular k-ε, k-ε realizable or k-ω. A particular attention has been paid to accurate description of the conditions on the inlet and the selection of suitable computing grid. The pressure measurement near buildings and oil visualization were undertaken and described accordingly.

Analysis of Wind Conditions Around a Building Development as a Part of Its Form Designing Process, a Case Study

“…Experimental studies in the aerodynamic tunnel of medium-speed were used. The oil visualization method was selected [4,10,11,12], as it provides qualitative results. The picture presenting the results, although it fails to provide reference to numerical values, makes it possible to identify the nature of wind conditions prevailing at the pedestrian level, which is an important zone, due to the presence of both, too violent gusts of wind and air stagnation.…”

Wind Conditions at Pedestrian Level in Different Types of Residential Urban Development for a High Degree of Land Use Efficiency

“…In Poland, for instance, wind issues are only considered in relation to the requirements for the design of high-rise buildings and buildings within the city ventilation corridors. Meanwhile, in large cities subject to constant structure densification, most erected building developments fail to be designed with wind phenomena in mind [23][24][25]. Yet, such buildings exert a genuine impact on wind phenomena.…”