Numerical analysis of the effects of fin angle on flow and heat transfer characteristics for cooling an electronic component with impinging jet and cross-flow combination
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Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Gazi Univ, Fac Engineering Architecture
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, cooling by using impinging air jet and cross-flow combination (IJCF) for an electronic component with constant heat flux is investigated. The effects of change of flow-guiding fin angle positioned inside the problem geometry on flow structure and heat transfer is considered. For this purpose, numerical analysis is conducted for different V-j/V-k (jet inlet velocity to channel inlet velocity ratio) and different fin angle is conducted with Computational Fluid Dynamics (CFD). Within this context, H/D (the ratio between the jet and impinging surface distance and jet diameter) ratio is taken constant as 3, V-j/V-k ratio values are changed as 0, 1, 2 and 3 and fin angle value (alpha) is changed 0o, 22.5 degrees, 45 degrees, 67.5 degrees and 90 degrees and simulations are repeated. To better see the effects of the fin angle, the obtained results are compared with the non-fin state. When the obtained results are analysed, with increasing fin angle (alpha) or V-j/V-k ratio when other parameters are constant, it is seen that heat transfer on the electronic component surfaces generally increased. The maximum heat transfer on the electronic component surface is reached for V-j/V-k=3 and alpha=90(o)'. It is observed that higher heat transfer can occur for higher fin angle and V-j/V-k ratio compared to other fin angles.
Açıklama
Anahtar Kelimeler
Cross-flow; impinging jet; fin angle; electronic cooling
Kaynak
Journal of The Faculty of Engineering and Architecture of Gazi University
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
37
Sayı
1
