Laminar Dönen Boru Akışında Isı Transferinin İncelenmesi

Yıl 2022, Cilt: 34 Sayı: 2, 647 - 655, 30.09.2022

Emre Turgut , Aydın Durmuş

https://doi.org/10.35234/fumbd.1114719

Öz

Bu çalışmada, silindirik borunun çeşitli hızlarda döndürülmesi ile akışkana verilen dönme etkisinin ısı transferi, sürtünme faktörü ve etkinlik değerleri üzerinde meydana getirdiği değişimler deneysel olarak araştırılmıştır. Deneyler Reynolds sayısının 500 ile 1800 değerleri arasında ve silindirdik borunun farklı devirlerde döndürülmesiyle gerçekleştirilmiştir. Yapılan deneyler sonucunda, dönme hızındaki artış ile Nusselt sayısı, sürtünme faktörü ve etkinlik değerlerinde artış olduğu görülmüştür. Ayrıca laminar akışta gerçekleştirilen akış gözleme deneyleri ile borunun dönme hızındaki artışın, akışkan üzerine yaptığı etkiler görüntülenmiştir. Bu görüntülerden; laminar akış karakteristiği olan çizgi şeklindeki doğrusal akışın, dönme hızındaki artış ile birlikte türbülanslı akış karakteristiği kazandığı görülmüştür. Elde edilen sonuçların literatürle uyum içinde olduğu sonucu elde edilmiştir.

Anahtar Kelimeler

Dönen boru akışı, ısı transferi, etkinlik, akış gözleme.

Destekleyen Kurum

FÜBAP

Proje Numarası

1044 nolu proje

Kaynakça

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