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|  Doç. Dr. Merdin DANIŞMAZ Kırşehir Ahi Evran Üniversitesi, Türkiye | 
| Özet | 
| This study explores the effects of fin cross-sectional geometry on the thermal and hydraulic performance of a pin fin heat sink under turbulent flow conditions. The heat sink design features a base plate measuring 100 mm wide, 100 mm long and 3 mm high with 14 fins arranged in a 4-3-4-3 configuration, utilizing air as the working fluid. The investigation employs CFD simulations to analyze variations in heat sink performance due to different fin geometries, including circular and elliptical cross-sections with and without perforations. Results indicate that elliptical fins, particularly those with a radius ratio of 0.50, significantly enhance heat transfer rates, achieving improvements in the HTPF of up to 90% compared to traditional circular designs. The study highlights a clear correlation between increasing Re and the Nu, demonstrating the effectiveness of elliptical fins in turbulent flow conditions. However, while perforated ... | 
| Anahtar Kelimeler | 
| Makale Türü | Özgün Makale | 
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale | 
| Dergi Adı | Case Studies in Thermal Engineering | 
| Dergi ISSN | 2214-157X Wos Dergi Scopus Dergi | 
| Dergi Tarandığı Indeksler | SCI-Expanded | 
| Dergi Grubu | Q1 | 
| Makale Dili | İngilizce | 
| Basım Tarihi | 08-2025 | 
| Cilt No | 74 | 
| Sayı | 106918 | 
| Doi Numarası | 10.1016/j.csite.2025.106918 | 
| Makale Linki | https://doi.org/10.1016/j.csite.2025.106918 |