Journal of Applied and Computational Mechanics

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

Document Type : Research Paper

Authors

1 Applied Energy and Thermal Laboratory (ETAP), Department of Mechanical Engineering, Faculty of Technology, Abou Bekr Belkaid University, B.P 119, Tlemcen, 13000, Algeria‎

2 Carnot de Bourgogne Interdisciplinary Laboratory - Site UTBM Sévenans - ICB UMR 6303 CNRS / Bourgogne Franche Comté University. (UBFC) 90010 Belfort cedex, France

3 Department of Mechanical Engineering, Faculty of Technology, Firat University, 23119 Elazig, Turkey

4 Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan

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 12.5 m high channel and tested for three different inclination angles, i.e. 20°, 40° and 60°. The model was simulated for a heat flux of 0.58 kW /m2, while the Reynolds numbers were considered within the interval ranging from 600 to 1400. 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.

Keywords

Main Subjects

[1] Sunden, B., Skoldheden, T., Heat transfer and pressure drop in a new type of corrugated channels, International Communication of Heat and Mass Transfer, 12, 1985, 559-566.
[2] Sunden, B., Trollheden, S., Periodic laminar flow and heat transfer in a corrugated channel, International Communication on Heat and Mass Transfer, 16, 1989, 215-225.
[3] Mohammed, H.A., Abed, A.M., and Wahid, M.A., The effects of geometrical parameters of a corrugated channel with in out-of phase arrangement, International Communication of Heat and Mass Transfer, 40, 2013, 47-57.
[4] Elshafei, E.A.M., Awad, M., and Ali, A.G., Heat transfer and pressure loss in narrow channels with corrugated walls, Second International Conference on Thermal Issues in Emerging Technologies THETA 2, Cairo, Egypt, 2008, 279-290.
[5] Elshafei, E.A.M., Awad, M., and Ali, A.G., Heat transfer and pressure drop in corrugated channels, Energy, 35, 2010, 101-110.
[6] Ali, M., Ramadhyani, S., Experiments on convective heat transfer in corrugated channels, Experimental Heat Transfer, 5, 1992, 175-193.
[7] Islamoglu, Y., Parmaksizoglu, C., The effect of channel height on the enhanced heat transfer characteristics in a corrugated heat exchanger channel, Applied Thermal Engineering, 23, 2003, 979-987.
[8] Gut, J., Pinto, J.M., Modeling of plate heat exchangers with generalized configurations, International Journal of Heat and Mass Transfer, 46, 2003, 2571-2585.
[9] Zimmerer, C., Gschwind, P., Gaiser, G., and Kottke, V., Comparison of heat and mass transfer in different heat exchanger geometries with corrugated walls, Experimental Thermal Fluid Science, 26, 2002, 269-273.
[10] Hamza, A., Ali, HH., Experimental study on laminar flow forced-convection in a channel with upper v-corrugated plate heated by radiation, International Journal of Heat and Mass Transfer, 45, 2002, 2107-2117.
[11] Pehlivan, H., Experimental investigation of convection heat transfer in converging–diverging wall channels, International Journal of Heat and Mass Transfer, 66, 2013, 128-138.
[12] Singh, S., Singh, B., Hans, V.S., Gill, R.S., CFD (computational fluid dynamics) investigation on Nusselt number and friction factor of solar air heater duct roughened with non-uniform cross-section transverse rib, Energy, 84, 2015, 509-517.
[13] Rashidi, S., Akbarzadeh, M., Thermal-hydraulic and entropy generation analysis for turbulent flow inside a corrugated channel, International Journal of Heat and Mass Transfer, 109, 2017, 812-823.
[14] Ajeel, R.K., Salim, W.I., Hasnan, K., Design characteristics of symmetrical semicircle-corrugated channel on heat transfer enhancement with nanofluid, International journal of Mechanical Sciences, 151, 2019, 236–250.
[15] Ajeel, R.K., Salim, W.I., Hasnan, K., Heat transfer enhancement in semicircle corrugated channel: effect of geometrical parameters and nanofluid, Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 53, 2019, 82–94.
[16] Ajeel, R.K., Salim, W.I., Hasnan, K., Influences of geometrical parameters on the heat transfer characteristics through symmetry trapezoidal-corrugated channel using SiO2-water nanofluid, International Communications in Heat and Mass Transfer, 101, 2019, 1-9.
[17] Ajeel, R.K., Salim, W.I., Hasnan, K., Turbulent convective heat transfer of silica oxide nanofluid through corrugated channels: An experimental and numerical study, International Journal of Heat and Mass Transfer, 145, 2019, 118806.
[18] Ameur, H., Effect of Corrugated Baffles on the Flow and Thermal Fields in a Channel Heat Exchanger, Journal of Applied and Computational Mechanics, 6, 2020, 209-218.
[19] Akbarzadeh, M., Rashidi, S., and Esfahan, J.A., Influences of corrugation profiles on entropy generation, heat transfer, pressure drop, and performance in a wavy channel, Applied Thermal Engineering, 116, 2017, 278-291.
[20] Sakr, M., Convective heat transfer and pressure drop in V-corrugated channel with different phase shifts, Heat and Mass Transfer, 51, 2015, 129–141.
[21] Launder, B.E., Spalding, D.B., The numerical computation of turbulent flow, Computer Methods in Applied Mechanics and Engineering, 3, 1974, 269-289. 
[22] Patankar, S.V., Numerical heat transfer and fluid flow, McGraw-Hill, New York, 1980.
[23] Naphon, P., Heat transfer characteristics and pressure drop in channel with V-corrugated upper and lower plates, Energy Conversion and Management, 48, 2007, 1516-1524.
[24] Naphon, P., Effect of corrugated plates in an in-phase arrangement on the heat transfer and flow developments, International Journal of Heat and Mass Transfer, 51, 2008, 3963-3971.
Journal of Applied and Computational Mechanics
Volume 7, Issue 3
July 2021
Pages 1306-1314