Fluid Flow and Heat Transfer over Staggered ꞌ+ꞌ Shaped Obstacles

Document Type : Research Paper


1 Unite of Research on Materials and Renewable Energies, Department of Physics, Faculty of Sciences, Abou Bekr Belkaid University, BP 119-13000-Tlemcen, Algeria

2 Faculty of Engineering, Kuwait College of Science and Technology, Doha, Kuwait

3 Department of Mechanical Engineering, Faculty of Technology, Abou Bekr Belkaid University BP 230-13000-Tlemcen, Algeria


The inclusion of complex obstacles within solar channels is the aim of this article. Two obstacles of the form ꞌ+ꞌ interlaced within a two-dimensional and rectangular channel are the subject of our study. The fluid is Newtonian, turbulent, incompressible and has constant properties. The Reynolds number varies from 12,000 to 32,000 with a constant temperature along the upper surface of the channel. The thermal and dynamic analysis of the channel's internal structure has been carefully processed. Different fields of speed and heat, with various profiles of frictions and heat exchange coefficients, have been included in this research. Future work will involve more complex geometries and using nanofluids to assess the optimum conditions for heat transfer enhancements.


Main Subjects

[1] S.V. Patankar, C.H. Liu, and E.M. Sparrow, Fully developed flow and heat transfer in ducts having streamwise-periodic variations of cross-sectional area, Journal of Heat Transfer, 99(2), 1977, 180-186.
[2] M. Kelkar, and S.V. Patankar, Numerical prediction of flow and heat transfer in parallel plate with staggered fins, Journal of Heat Transfer, 109(1), 1987, 25-30.
[3] B.W. Webb, and S. Ramadhyani, Conjugate heat transfer in a channel with staggered ribs, International Journal of Heat and Mass Transfer, 28(9), 1985, 1679-1687.
[4] J.R. Lopez, N.K. Anand, and L.S. Fletcher, Heat transfer in a three-dimensional channel with baffles, Numerical Heat Transfer, 30(2), 1996, 189-205. 
[5] S.R.N. De Zilwa, L.K. Khezzar, and J.H. Whitelaw, Flows through plane sudden-expansions, International Journal of Numerical Method in Fluids, 32(3), 1998, 313-329.  
[6] Y.M. Hong, and S.S. Hsieh, Heat transfer and friction factor measurement in ducts with staggered and inline ribs, Journal of Heat transfer, 115(1), 1993, 58-65.
[7] D.D. Luo, C.W. Leung, T.L. Chan, W.O. Wong, Flow and forced-convection characteristics of turbulent flow through parallel plates with periodic transverse ribs, Numerical Heat Transfer, 48(1), 2005, 43-58. 
[8] M. Molki, and A.R. Mostoufizadeh, Turbulent heat transfer in rectangular ducts with repeated-baffle blockages, International Journal of Heat and Mass Transfer, 32(8), 1989, 1491-1499. 
[9] C.H. Cheng, and W.H. Huang, Laminar forced convection flows in horizontal channels with transverse fins placed in entrance regions, International Journal of Computation and Methodology, 16(1), 1998, 77-100.
[10] Z. Guo, and N.K. Anand, Three-dimensional heat transfer in a channel with a baffle in the entrance region, Numerical Heat Transfer, 31(1), 1997, 21-35.
[11] S.S. Mousavi, and K. Hooman, Heat and fluid flow in entrance region of a channel with staggered baffles, Energy Conversion and Management, 47(15-16), 2006, 2011-2019.
[12] M.A. Founti, and J.H. Whitelaw, Shell side flow in a model disc-and-doughnut heat exchanger, Tech. Report FS/81/37, Mech. Eng. Dept., Imperial College, London, UK., 1983.
[13] C. Berner, F. Durst, and D.M. McEligot, Flow around baffles, Journal of Heat Transfer, 106(4), 1984, 743-749.
[14] C. Berner, F. Durst, and D.M. McEligot, Streamwise-periodic flow around baffles. In: Proceedings of the 2nd int. conference on applications of laser anemometry to fluid mechanics, Lisbon, Portugal, 1984.
[15] J. Antoniou, and G. Bergeles, Development of the Reattached flow behind surface mounted two-dimensional prisms, Journal of Fluids Engineering, 110(2), 1988, 127-133.
[16] S. Acharya, S. Dutta, and T.A. Myrum, Heat transfer in turbulent flow past a surface-mounted two-dimensional rib, Journal of Heat Transfer, 120(3), 1998, 724-734.
[17] S.V. Möller, L.A.M. Endres, and G. Escobar, Wall pressure field in a tube bank after a baffle plate, Trans. SMiRT 15, 15 th Int. Conf. Structural Mechanics in Reactor Technology, Seoul, 7, 1999, 262-275.
[18] L.A.M. Endres, Experimental analysis of the fluctuating pressure field in tube banks subjected to turbulent cross flow, Dr. Eng. Thesis. PROMEC/UFRGS, Federal Univ. of Rio Grande do Sul, Porto Alegre-RS, Brazil (in Portuguese), 1997.
[19] L.A.M. Endres, and S.V. Möller, On the fluctuating wall pressure field in tube banks, Nuclear Engineering and Design, 203(1), 2001, 13-26.
[20]  L.C. Demartini, Numeric and experimental analysis of pressure and velocity fields in a duct with baffle plates, M. Eng. Dissertation, PROMEC/UFRGS, Porto Alegre-RS, Brazil (in Portuguese), 2001.
[21] L.C. Demartini, H.A. Vielmo, and S.V. Möller, Numeric and experimental analysis of the turbulent flow through a channel with baffle plates, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 26(2), 2004, 153-159.
[22] M.A. Habib, A.M. Mobarak, M.A. Sallak, E.A. Abdel Hadi, and R.I. Affify, Experimental investigation of heat transfer and flow over baffles of different heights, Journal of Heat Transfer, 116(2), 1994, 363-368.
[23] H. Li, and V. Kottke, Effect of baffle spacing on pressure drop and local heat transfer in shell-and-tube heat exchangers for staggered tube arrangement, International Journal of Heat and Mass Transfer, 41(10), 1998, 1303-1311.
[24] Y.L. Tsay, T.S. Chang, and J.C. Cheng, Heat transfer enhancement of backward-facing step flow in a channel by using baffle installed on the channel wall, Acta Mechanica, 174(1-2), 2005, 63-76.
[25] P. Promvonge, and C. Thianpong, thermal performance assessment of turbulent channel flows over different shaped ribs, International Communications in Heat and Mass Transfer, 35(10), 2008, 1327-1334.
[26] S. Sripattanapipat, and P. Promvonge, Numerical analysis of laminar heat transfer in a channel with diamond-shaped baffles, International Communications in Heat and Mass Transfer, 36(1), 2009, 32-38.
[27] P. Promvonge, and S. Kwankaomeng, Periodic laminar flow and heat transfer in a channel with 45° staggered V-baffles, International Communications in Heat and Mass Transfer, 37(7), 2010, 841-849.
[28] P. Sriromreun, C. Thianpong, and 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(7), 2012, 945-952.
[29] Y.G. Lei, Y.L. He, P. Chu, and R. Li, Design and optimization of heat exchangers with helical baffles, Chemical Engineering Science, 63(17), 2008, 4386-4395.
[30] B.B. Gupta, J.A. Howell, D. Wu, and R.W. Field, A helical baffle for cross-flow micro filtration, Journal of Membrane Science, 102(6), 1995, 31-42. 
[31] H. Benzenine, R. Saim, S. Abboudi, and O. Imine, Numerical analysis of turbulent flow and conjugate heat transfer characteristics in a channel provided with internal waved fins and baffles: effect of pitch of waved fins and baffles, in: Proceedings of ASME 2010 3rd Joint US-European fluids engineering summer meeting and 8th Int. Conf. Nanochannels, Microchannels, Minichannels FEDSM2010-ICNM2010, Montreal, Canada, 2013.
[32] Nasiruddin, and M.H. Kamran Siddiqui, Heat transfer augmentation in a heat exchanger tub using a baffle, International Journal of Heat and Fluid Flow, 28(2), 2007, 318-328.
[33] P. Dutta, Innovative heat transfer enhancement with inclined solid and perforated baffles, MS Thesis, South Carolina Univ., Columbia, SC., 1997.
[34] P. Dutta, and S. Dutta, Effect of baffle size, perforation and orientation on internal heat transfer enhancement, International Journal of Heat and Mass Transfer, 41(19), 1998, 3005-3013.
[35] P. Dutta, S. Dutta, R.E. Jones, and J.A. Khan, Heat transfer coefficient enhancement with perforated baffles, Journal of Heat Transfer, 120(3), 1998, 795-797.
[36] F.R. Menter, Two-equation eddy-viscosity turbulence models for engineering applications, AIAA Journal, 32(8), 1994, 1598-1605.
[37] S.V. Patankar, Numerical heat transfer and fluid flow, McGraw-Hill, New York, 1980.
[38] B.S. Petukhov, Heat transfer and friction in turbulent pipe flow with variable physical properties, Advances in Heat Transfer, 6, 1970, 503-564.
[39] F.W. Dittus, and L.M.K. Boelter, Heat transfer in automobile radiators of tubular type, University of California Publications in Engineering. Vol. 2, Berkeley, California, University of California Press, 1930.