The Problem of Airflow Around Building Clusters in Different Configurations

• Autorzy: Jędrzejewski M. , Poćwierz M. , Zielonko-Jung K.

Identyfikatory

DOI

10.1515/meceng-2017-0024

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

environmental wind engineering; airflow around buildings; damage mechanics; CFD simulation; k-ε realizable model of turbulence; RSM model of turbulence

PL

inżynieria wiatrowa; przepływ powietrza wokół budynków; mechanika uszkodzeń; symulacja obliczeniowej dynamiki płynów CFD; model turbulencji k-ε realizable; model turbulencji RSM

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2017
• Tom: Vol. LXIV, nr 3
• Strony: 401--418
• Opis fizyczny: Bibliogr. 30 poz., fot., rys.

Twórcy

autor

Jędrzejewski M.

• Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics, Nowowiejska 24, 00-661 Warsaw, Poland

autor

Poćwierz M.

• Warsaw University of Technology, Institute of Aeronautics and Applied Mechanics, Nowowiejska 24, 00-661 Warsaw, Poland

autor

Zielonko-Jung K.

• Warsaw University of Technology, Faculty of Architecture, Koszykowa 55, 00-659 Warsaw, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).