Simulation of aeration of buildings erected on complex terrain

Adham Giyasov,Dmitry Kim,P Akimov,A Tusnin,A Doroshenko,N Vatin

doi:10.1051/e3sconf/202126305006

Adham Giyasov, Dmitry Kim + Show 4 more

Open Access

https://doi.org/10.1051/e3sconf/202126305006

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Abstract

The problem of improving the environment by rational use of natural resources is currently very relevant. By means of theoretical and experimental metrological and aerodynamic studies, the infiltration processes between the internal and external air environment during the wind flow around buildings of buildings erected on complex terrain, as well as the adjacent territories of residential development, are established, which allows us to assess the heat loss and ventilation conditions of buildings under wind pressure. A model of the formation of the circulation zone for different geometric parameters of buildings, wind flow velocity and slope steepness is developed, which allows preliminary forecasting of the aeration regime of the adjacent territories. Zones of backwater and calm wind in the adjacent territories were identified. A model of the wind shadow zone has been compiled, which allows the designer to zone the territory adjacent to the building at the design stage, taking into account the aeration regime of the development.

Highlights

Summing up the results of experimental aerodynamic studies, the following conclusions are formulated: When the wind interacts with the building, a backwater zone is formed in front of it and a circulation zone is formed behind it, in the center of which the wind speed decreases to zero
The distribution of air flow velocities along the height is characterized by alternating signs from the zero point up and down, the part of the air flow below the zero-speed line has the opposite direction to the guiding wind flow
The study of the qualitative picture of the movement of air flows that occurs when the wind flow flows around models of detached buildings, it is established that the flow failure from the windward side of the edge of the cornice of the building in the circulation zone ends both on the inclined surface of the relief behind the windward wall at

Summary

Introduction

To study the aeration of the building area, it is necessary to find out the distribution of wind speed in the surface area of the building under consideration, as well as to take into account the effect of wind on buildings, which contributes to air filtration through building structures and architectural means that provide air exchange between the internal and external air environment. In this case, an important condition is the assessment of the increase in heat loss of buildings. The building itself has a significant impact on the nature of the air flow, near the building changes the speed and direction of the wind, there are strong vortex formations around the buildings, depending on the shape in the plan and the spatial solution, as well as on the territory of the building with different planning structure

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Conclusion