Numerical Study on Heat Transfer and Pressure Drop in a Mini-‎Channel with Corrugated Walls‎

Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_JACM-7-3_005

تاریخ نمایه سازی: 12 مرداد 1400

Abstract:

This study presents the numerical results relative to the development of heat transfer and pressure drop inside a corrugated channel, under constant heat flux conditions applied to the walls; the working fluid is air. The test section is a channel with two plates having trapezoidal-shaped corrugations with V-folds. The corrugated plates were placed inside a ۱۲.۵ m high channel and tested for three different inclination angles, i.e. ۲۰°, ۴۰° and ۶۰°. The model was simulated for a heat flux of ۰.۵۸ kW /m۲, while the Reynolds numbers were considered within the interval ranging from ۶۰۰ to ۱۴۰۰. The standard turbulent model (k-ε) was employed to simulate the flow and heat transfer developments within the channel. In addition, the governing equations were solved using the finite volume method in a structured uniform grid arrangement. Moreover, the effects of the geometric parameters on heat transfer and flow evolution were discussed as well. It is also worth noting that the corrugated surface had a significant impact on the enhancement of heat transfer and pressure drop due to breakage and destabilization occurring in the thermal boundary layer.

Authors

Abdelaziz Begag

Applied Energy and Thermal Laboratory (ETAP), Department of Mechanical Engineering, Faculty of Technology, Abou Bekr Belkaid University, B.P ۱۱۹, Tlemcen, ۱۳۰۰۰, Algeria‎

Rachid Saim

Applied Energy and Thermal Laboratory (ETAP), Department of Mechanical Engineering, Faculty of Technology, Abou Bekr Belkaid University, B.P ۱۱۹, Tlemcen, ۱۳۰۰۰, Algeria‎

Hakan F. Öztop

Department of Mechanical Engineering, Faculty of Technology, Firat University, ۲۳۱۱۹ Elazig, Turkey

Said Abboudi

Carnot de Bourgogne Interdisciplinary Laboratory - Site UTBM Sévenans - ICB UMR ۶۳۰۳ CNRS / Bourgogne Franche Comté University. (UBFC) ۹۰۰۱۰ Belfort cedex, France

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