Ahmet YURTSEVEN, Taner ÇOŞGUN, Nurten VARDAR

Kapak Etkili Hücre İçindeki Türbülanslı Akıma Taban Geometrisinin Etkisi

Üç boyutlu hücre tabanındaki çıkıntıların (rib), hücre içindeki türbülanslı akıma ve ısı transferine etkisi sayısal olarak incelenmiştir. Çalışmada altı farklı Reynolds sayısı, iki farklı çıkıntı geometrisi ( kare ve köşeleri yuvarlatılmış kare) ve dört farklı yerleşim kullanılmıştır. Çıkıntı bölgelerindeki akım çizgileri, hız alanları, sıcaklık dağılımları ile birlikte Nusselt sayısının alt yüzeydeki değerleri ve değişimi incelenmiştir.

Anahtar Kelimeler:

Kapak etkili hücre, Hesaplamalı Akışkanlar Dinamiği (HAD), ısı transferi, çıkıntılı yüzeyler

The Influence of Bottom Geometry on Turbulent Flow Field in a Lid-Driven Cavity

In this study, the effect of rib structures on the turbulent flow and heat transfer have been investigated numerically. six different Reynolds Numbers, two different rib geometry (sharp-edged square and rounded-edged square) and four different rib layout are carried out. Streamlines close to the ribbed area, velocities, temperature distributions and Nusselt Number distributions on the bottom surface are investigated.

Keywords:

Lid driven cavity flow, Computational Fluid Dynamics (CFD), heat transfer, ribbed surfaces,

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