A NUMERICAL INVESTIGATION ON THE THERMO-HYDRAULIC PERFORMANCE OF DIMPLED FIN CONFIGURATIONS IN A RECTANGULAR CHANNEL
Küçük Resim Yok
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Begell House, Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The main purpose of the study is to observe the effect of dimple fin diameter and arrangement on thermohydraulic performance under a turbulent flow regime. In this context, it was investigated numerically for convective heat transfer and flow characteristics of air flowing in a rectangular channel with different dimple configurations. The present study has conducted the analyses for fully developed flow under uniform and constant heat flux conditions of 800 W/m(2). The simulations have been carried out with Reynolds numbers ranging from 15000 to 25000. As a result, Among the 5 cases, the highest heat transfer and friction coefficient was obtained for the rectangular channel with a dimple fin diameter of 2 mm. On the other hand, Nusselt number and friction coefficient values are compatible with the literature. The highest performance evaluation criteria value was obtained at Re=15000 and for case 5. After all, it was observed that the forced convection heat transfer ratio increased with dimple diameter and Reynolds number.
Açıklama
International Symposium on Convective Heat and Mass Transfer (CONV) -- JUN 05-10, 2022 -- Izmir, TURKEY
Anahtar Kelimeler
Convective heat transfer, dimpled fin, CFD, turbulent flow, thermo-hydraulic performance
Kaynak
Proceedings of Conv-22: Int Symp On Convective Heat and Mass Transfer, 2022
WoS Q Değeri
N/A
