Investigation of Pressure Distributions on Hemispherical Roofs With Different Eave Types

Yıl 2021, Cilt: 62 Sayı: 705, 702 - 714, 08.12.2021

Tekmile Cürebal , Aleyna Ağırman Kalca , Yücel Özmen

https://doi.org/10.46399/muhendismakina.941875

Öz

In this study, the flow fields around cylindrical buildings with hemispherical roof geometry have been analyzed experimentally and numerically for two different eaves types (normal and pitched eaves). In the experimental part of the study, the mean pressure distributions on the roof surfaces of the building models placed in the wind tunnel were obtained and flow visualization studies were carried out around the models. In the numerical part, the flow fields around the building models were calculated using the SST k-ω turbulence model. It was observed that the pressure distributions obtained from the numerical study were compatible with the pressure distributions obtained in the experimental study, and the change in the eave type did not cause an important change in the pressure distributions.

Anahtar Kelimeler

Cylindrical building, Hemispherical roof, Eave, Pressure distribution.

Farklı Saçak Tiplerine Sahip Yarı Küresel Çatılar Üzerinde Basınç Dağılımlarının İncelenmesi

Öz

Bu çalışmada, silindirik binaların yarı küresel geometrideki çatıları etrafındaki akış alanları, normal ve yelkıran saçak şeklinde iki farklı saçak tipi için deneysel ve sayısal olarak incelenmiştir. Çalışmanın deneysel kısmında, rüzgâr tüneline yerleştirilen bina modellerinin çatı yüzeylerinde ortalama basınç dağılımları elde edilmiş ve modeller etrafında akış görüntüleme çalışmaları gerçekleştirilmiştir. Sayısal kısımda ise, bina modelleri etrafındaki akış alanları SST k-ω türbülans modeli kullanılarak hesaplanmıştır. Sayısal çalışmadan elde edilen basınç dağılımlarının deneysel çalışmadan elde edilen basınç dağılımlarıyla uyumlu olduğu ve saçak tipindeki değişimin, basınç dağılımlarında belirgin bir değişime yol açmadığı görülmüştür.

Anahtar Kelimeler

Silindirik bina, Yarı küresel çatı, Saçak, Basınç dağılımı.

Kaynakça

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