THE PROBLEM OF AIRFLOW AROUND BUILDINGS CLUSTERS IN DIFFERENT CONFIGURATIONS

Mateusz Jędrzejewski; Marta Poćwierz; Katarzyna Zielonko-Jung

doi:10.1515/meceng-2017-0024

THE PROBLEM OF AIRFLOW AROUND BUILDINGS CLUSTERS IN DIFFERENT CONFIGURATIONS

Abstract

In the paper, the authors discuss the construction of a model of an exemplary urban layout. Numerical simulation has been performed by means of a commercial software Fluent using two different turbulence models: the popular k-ε realizable one, and the Reynolds Stress Model (RSM), which is still being developed. The former is a 2-equations model, while the latter – is a RSM model – that consists of 7 equations. The studies have shown that, in this specific case, a more complex model of turbulence is not necessary. The results obtained with this model are not more accurate than the ones obtained using the RKE model. The model, scale 1:400, was tested in a wind tunnel. The pressure measurement near buildings, oil visualization and scour technique were undertaken and described accordingly. Measurements gave the quantitative and qualitative information describing the nature of the flow. Finally, the data were compared with the results of the experiments performed. The pressure coefficients resulting from the experiment were compared with the coefficients obtained from the numerical simulation. At the same time velocity maps and streamlines obtained from the calculations were combined with the results of the oil visualisation and scour technique.

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Authors (3)

Mateusz Jędrzejewski mgr inż.
- Warsaw University of Technology
Marta Poćwierz dr inż.
- Warsaw University of Technology
Katarzyna Zielonko-Jung dr hab. inż. arch.

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DOI:: Digital Object Identifier (open in new tab) 10.1515/meceng-2017-0024
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Category:: Articles
Type:: artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
Published in:: Archive of Mechanical Engineering no. LXIV, pages 401 - 418,
ISSN: 0004-0738
Language:: English
Publication year:: 2017
Bibliographic description:: Jędrzejewski M., Poćwierz M., Zielonko-Jung K.: THE PROBLEM OF AIRFLOW AROUND BUILDINGS CLUSTERS IN DIFFERENT CONFIGURATIONS// Archive of Mechanical Engineering. -Vol. LXIV., iss. 3 (2017), s.401-418
DOI:: Digital Object Identifier (open in new tab) 10.1515/meceng-2017-0024
Verified by:: Gdańsk University of Technology