Computer modeling of aerodynamic flow and assessment of pedestrian aerodynamic comfort of a building complex

Abstract

The results of a computer modeling of the distribution of wind flows near diverse objects (large-span and high-rise buildings) are given and analyzed. The analysis of pedestrian aerodynamic comfort is carried out for a vertical object (a high-rise building) separately and in two positions in combination with a horizontal one (a large span). Wind flow distribution fields are obtained. The results of the experiment show that complex buildings affect their distribution. The point of application and the modulus of the vector of the resultant wind load change. The speed and direction of distribution of wind flows near objects are changing. A nearby building located on the windward side creates a «barrier» reducing the wind speed in the courtyard areas. A building located downwind is able to reflect air flows, creating swirls near objects. More comfortable for external technical work on the facades of the buildings in question is the position from behind facing the direction of the wind flow.