| Autor: |
Tůmová, Eliška, Pokorná, Sofie, Hirš, Jiří |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 9/4/2023, Vol. 2928 Issue 1, p1-9, 9p |
| Abstrakt: |
This paper focuses on the wind flow over the building flat roof where its values can be used for the determination of the energy potential for the small wind power plants. The wind flow is analyzed on the roof of the office building in the scientific center and detailed 3D Computation Fluid Dynamics (CFD) models of the air flow over the real terrain profile with the office building were created. High attention is paid to the input boundary conditions namely to the wind velocity, wind direction and to the roughness of the surfaces. Also, because the main factor that influences the accuracy and computational expenses of the CFD simulations is the size of the computational domain, the computation model of the terrain and space was optimized to preserve maximum accuracy according to the contour map of the terrain. The attention was also paid to minimization of the resulting wind flow deformation. There are used data from the long-term measurement from meteorological station of the building rooftop. In this paper are compared resulting wind flow fields from two variants of the office building surroundings. Model A contains replacement of the buildings from the surrounding scientific grounds in the considered zone by the aerodynamic roughness length according to Davenport-Wieringa and model B includes real shape of the surrounding buildings as bodies. The resulting computed wind flow above the rooftop of the building is in both cases verified by the outdoor measurement of the wind velocity. The resulting findings, especially the processed images of the wind flow fields, can be used to optimizing of the wind power plant location on the building rooftop and contribute to the expansion of the microgrids and energy self-sufficiency of the buildings. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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