Turbulent Heat Transfer Characteristics of a W-Baffled Channel Flow - Heat Transfer Aspect

Abstract:

In this work, the thermal behavior of a turbulent forced-convection flow of air in a rectangular cross section channel with attached W-shaped obstacles is investigated. The continuity, momentum and energy equations employed to control the heat and velocity in the computational domain. The turbulence model of k-ε is employed to simulate the turbulence effects. The finite volume method with SIMPLE algorithm is employed as the solution method. The results are reported temperature, local and average Nusselt numbers, and mean velocity contours. The subject is relevant and important for industrial applications.

• Periodical: Defect and Diffusion Forum (Volume 401)
• Pages: 117-130
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.401.117
• Online since: May 2020
• Authors: Younes Menni*, Ali J. Chamkha, Oluwole Daniel Makinde
• Keywords: Forced Convection, Heat Transfer Aspect, Nusselt Number, Thermal Enhancement, W-Baffle

References

[1] T. Muszyński, S. M. Kozieł, Parametric study of fluid flow and heat transfer over louvered fins of air heat pump evaporator, Archives of Thermodynamics, 37(3) (2016) 45-62.

DOI: 10.1515/aoter-2016-0019

[2] J. S. Park, J. C. Han, Y. Huang, S. Ou, R. J. Boyle, Heat transfer performance comparisons of five different rectangular channels with parallel angled ribs, International Journal of Heat and Mass Transfer, 35(11) (1992) 2891-2903.

DOI: 10.1016/0017-9310(92)90309-g

[3] T. T. Wong, C. W. Leung, Z. Y. Li, W. Q. Tao, Turbulent convection of air-cooled rectangular duct with surface-mounted cross-ribs, International Journal of Heat and Mass Transfer, 46 (2003) 4629-4638.

DOI: 10.1016/s0017-9310(03)00298-9

[4] Nasiruddin, M. H. Kamran Siddiqui, Heat transfer augmentation in a heat exchanger tube using a baffle, International Journal of Heat and Fluid Flow, 28 (2007) 318-328.

DOI: 10.1016/j.ijheatfluidflow.2006.03.020

[5] J. J. Hwang, T. M. Liou, Heat transfer in a rectangular channel with perforated turbulence promoters using holographic interferometry measurement, International Journal of Heat and Mass Transfer, 38(17) (1995) 3197-3207.

DOI: 10.1016/0017-9310(95)00065-h

[6] R. Karwa, B. K. Maheshwari, Heat transfer and friction in an asymmetrically heated rectangular duct with half and fully perforated baffles at different pitches, International Communications in Heat and Mass Transfer, 36 (2009) 264-268.

DOI: 10.1016/j.icheatmasstransfer.2008.11.005

[7] D. Sahel, H. Ameur, R. Benzeguir, Y. Kamla, Enhancement of heat transfer in a rectangular channel with perforated baffles, Applied Thermal Engineering, 101 (2016)156-164.

DOI: 10.1016/j.applthermaleng.2016.02.136

[8] J. A. Khan, J. Hinton, S. C. Baxter, Enhancement of heat transfer with inclined baffles and ribs combined, Enhanced Heat Transfer, 9(3/4) (2002) 137-151.

DOI: 10.1080/10655130215738

[9] O. Se Kyung, B. K. P. Ary, S. W. Ahn, Heat transfer and frictional characteristics in rectangular channel with inclined perforated baffles, World Academy of Science, Engineering and Technology, 3(1) (2009) 13-18.

[10] K. H. Ko, N. K. Anand, Use of porous baffles to enhance heat transfer in a rectangular channel, International Journal of Heat and Mass Transfer, 46 (2003) 4191-4199.

DOI: 10.1016/s0017-9310(03)00251-5

[11] N. Guerroudj, H. Kahalerras, Mixed convection in a channel provided with heated porous blocks of various shapes, Energy Conversion and Management, 51 (2010) 505-517.

DOI: 10.1016/j.enconman.2009.10.015

[12] Kamali, A. R. Binesh, The importance of rib shape effects on the local heat transfer and flow friction characteristics of square ducts with ribbed internal surfaces, International Communications in Heat and Mass Transfer, 35 (2008) 1032-1040.

DOI: 10.1016/j.icheatmasstransfer.2008.04.012

[13] S. Sripattanapipat, P. Promvonge, Numerical analysis of laminar heat transfer in a channel with diamond-shaped baffles, International Communications in Heat and Mass Transfer, 36 (2009) 32-38.

DOI: 10.1016/j.icheatmasstransfer.2008.09.008

[14] S. K. Saini, R. P. Saini, Development of correlations for Nusselt number and friction factor for solar air heater with roughened duct having arc-shaped wire as artificial roughness, Solar Energy, 82 (2008) 1118-1130.

DOI: 10.1016/j.solener.2008.05.010

[15] P. Stehlik, J. Nemcansky, D. Kral, L. W. Swanson, Comparison of correction factors for shell-and-tube heat exchangers with segmental or helical baffles, Heat Transfer Engineering, 15 (1994) 55-65.

DOI: 10.1080/01457639408939818

[16] J. Wen, H. Yang, S. Wang, Y. Xue, X. Tong, Experimental investigation on performance comparison for shell-and-tube heat exchangers with different baffles, International Journal of Heat and Mass Transfer, 84 (2015) 990-997.

DOI: 10.1016/j.ijheatmasstransfer.2014.12.071

[17] H. E. Fawaz, M. T. S. Badawy, M. F. Abd Rabbo, A. Elfeky, Numerical investigation of fully developed periodic turbulent flow in a square channel fitted with 45° in-line V-baffle turbulators pointing upstream, Alexandria Engineering Journal 57(2) (2018) 633-642.

DOI: 10.1016/j.aej.2017.02.020

[18] P. Sriromreun, C. Thianpong, P. Promvonge, Experimental and numerical study on heat transfer enhancement in a channel with Z-shaped baffles, International Communications in Heat and Mass Transfer, 39 (2012) 945-952.

DOI: 10.1016/j.icheatmasstransfer.2012.05.016

[19] K. Boukhadia, H. Ameur, D. Sahel, M. Bozit, Effect of the perforation design on the fluid flow and heat transfer characteristics of a plate fin heat exchanger, International Journal of Thermal Sciences, 126 (2018) 172-180.

DOI: 10.1016/j.ijthermalsci.2017.12.025

[20] R. Ben Slama, The air solar collectors: comparative study, introduction of baffles to favor the heat transfer, Solar Energy, 81 (2007) 139-149.

DOI: 10.1016/j.solener.2006.05.002

[21] R. K. Karwa, Experimental studies of augmented heat transfer and friction in symmetrically heated rectangular ducts with ribs on heated wall in transverse, inclined, v-continuous and v-discrete pattern, International Communications in Heat and Mass Transfer, 30 (2003) 241-250.

DOI: 10.1016/s0735-1933(03)00035-6

[22] S. Tamna, S. Skullong, C. Thianpong, P. Promvonge, Heat transfer behaviors in a solar air heater channel with multiple V-baffle vortex generators, Solar Energy, 110 (2014) 720-735.

DOI: 10.1016/j.solener.2014.10.020

[23] R. Kumar, A. Kumar, R. Chauhan, M. Sethi, Heat transfer enhancement in solar air channel with broken multiple V-type baffles, Case Studies in Thermal Engineering, 8 (2016) 187-197.

DOI: 10.1016/j.csite.2016.07.001

[24] F. Wang, X. Chen, J. Chen, Y. You, Experimental study on a debris-flow drainage channel with different types of energy dissipation baffles, Engineering Geology, 220(30) (2017) 43-51.

DOI: 10.1016/j.enggeo.2017.01.014

[25] L. C. Demartini, H. A. Vielmo, Q. V. Möller, Numeric and experimental analysis of turbulent flow through a channel with baffle plates, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 26 (2004) 153-159.

DOI: 10.1590/s1678-58782004000200006

[26] B. E. Launder, D. B. Spalding, The numerical computation of turbulent flows, Computer Methods in Applied Mechanics and Engineering, 3(2) (1974) 269-289.

DOI: 10.1016/0045-7825(74)90029-2

[27] S. V. Patankar, Numerical heat transfer and fluid flow, McGraw-Hill, New York, (1980).

[28] B. P. Leonard, S. Mokhtari, ULTRA-SHARP nonoscillatory convection schemes for high-speed steady multidimensional flow, NASA TM 1-2568, NASA Lewis Research Center, (1990).

[29] M. Sankar, S. Kiran, G.K. Ramesh, O.D. Makinde, Natural convection in a non-uniformly heated vertical annular cavity, Defect and Diffusion Forum, 377 (20187) 189-199.

DOI: 10.4028/www.scientific.net/ddf.377.189

[30] O. D. Makinde, Z.H. Khan, R. Ahmad, W. A. Khan, Numerical study of unsteady hydromagnetic radiating fluid flow past a slippery stretching sheet embedded in a porous medium, Physics of Fluids, 30 (2018) 083601 (7pages).

DOI: 10.1063/1.5046331