Djellid, Ikram, Bouhamri, Noureddine, Bouhafs, Mohamed, Bouzit, Mohamed, Boualem, Ikram. (1405). Investigation of a Flexible V-Fin for Heat Transfer Enhancement in a Backward-Facing Step. هنرهای کاربردی, 13(3), 295-313. doi: 10.22075/jhmtr.2025.38745.1809
Ikram Djellid; Noureddine Bouhamri; Mohamed Bouhafs; Mohamed Bouzit; Ikram Boualem. "Investigation of a Flexible V-Fin for Heat Transfer Enhancement in a Backward-Facing Step". هنرهای کاربردی, 13, 3, 1405, 295-313. doi: 10.22075/jhmtr.2025.38745.1809
Djellid, Ikram, Bouhamri, Noureddine, Bouhafs, Mohamed, Bouzit, Mohamed, Boualem, Ikram. (1405). 'Investigation of a Flexible V-Fin for Heat Transfer Enhancement in a Backward-Facing Step', هنرهای کاربردی, 13(3), pp. 295-313. doi: 10.22075/jhmtr.2025.38745.1809
Djellid, Ikram, Bouhamri, Noureddine, Bouhafs, Mohamed, Bouzit, Mohamed, Boualem, Ikram. Investigation of a Flexible V-Fin for Heat Transfer Enhancement in a Backward-Facing Step. هنرهای کاربردی, 1405; 13(3): 295-313. doi: 10.22075/jhmtr.2025.38745.1809

Investigation of a Flexible V-Fin for Heat Transfer Enhancement in a Backward-Facing Step

Journal of Heat and Mass Transfer Research
دوره 13، شماره 3 - شماره پیاپی 27، پاییز 2026، صفحه 295-313    اصل مقاله (2.05 M)
نوع مقاله: Full Length Research Article
شناسه دیجیتال (DOI): 10.22075/jhmtr.2025.38745.1809
نویسندگان
Ikram Djellid1؛ Noureddine Bouhamri* 1؛ Mohamed Bouhafs1؛ Mohamed Bouzit2؛ Ikram Boualem1
1Institute of Industrial Maintenance and Safety, University of Oran 2 Mohamed Ben Ahmed, Laboratory of Production Engineering and Industrial Maintenance (LGPMI), B.P. 170 El M’naouer Oran 31000, Algeria
2Faculty of Mechanical Engineering, University of Science and Technology of Oran Mohamed Boudiaf, El M’naouer, Laboratory of Maritime Sciences and Engineering (LSIM), B.P.1505, 31000, Oran, Algeria
چکیده
A numerical study was conducted to enhance heat transfer in a backward-facing step configuration via forced convection. Using the finite element method, simulations were performed for Reynolds numbers from 50 to 200. A flexible V-fin was introduced to direct the coolant (air) flow toward the heated wall. The fin's vertical position (y = 0, H/10, H/5) and elasticity, governed by the Cauchy number (Ca = 10⁻⁴, 10⁻⁵, 10⁻⁶, 10⁻⁷), were key variables. The optimal configuration (y = H/5, Ca = 10⁻⁷, Re = 200) yielded a 30.75% increase in the average Nusselt number over the baseline without a fin. The results confirm that the fin consistently improves thermal performance, whether rigid or flexible. This study employs finite element simulations to analyze forced convection heat transfer in a backward-facing step channel. The research investigates the effect of a flexible V-fin. compared to the case without a fin. Crucially, the fin's presence improved heat transfer performance regardless of its rigidity.
کلیدواژه‌ها
Nusselt number؛ Elastic؛ Forced convection؛ Heat transfer؛ Fin positions
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