Journal of Computational & Applied Research in Mechanical Engineering (JCARME)

Document Type : Research Paper

Authors

¹ School of Mechanical Engineering, KIIT University, Bhubaneswar (India) 751024

² Department of Mechanical Engineering., GITA, Bhubaneswar, 752054, India

https://doi.org/10.22061/jcarme.2019.3962.1466

Abstract

Theoretical investigation of turbulent flame impinging normally on plane surfaces isdone to determine the average Nusselt number and the plate heat flux distribution as functions of jet Reynolds number, equivalence ratio, and separation distance. The analysis is established on the mathematical formulation of the governing equations for conservation of mass, momentum, and energy. The turbulence phenomenon is analyzed with the help of the RNG k-ε turbulence model. The radiative heat transfer model has been designed by using the Discrete Ordinates radiation model. Results show that the heat flux graduallyincreases with the radial distance towards the plate center and attains a maximum value at a location slightly away from the stagnation point. The peak value in the local heat flux comes closer to the stagnation point when the height between the plates and the nozzle increases. Effects of variation of dimensionless separation distance on heat transfer characteristics are investigated. It is observed that heat flux gradually improves when the value of separation distance changes from 12 to 8 and decreases near the stagnation region with the further decrease in separation distance from 8 to 4.

Graphical Abstract

Keywords

dor

20.1001.1.22287922.2021.10.2.7.8

Main Subjects

Thermodynamics and Cumbustion

References

[1] C. E. Baukal, and B. Gebhart, "A review of empirical flame impingement heat transfer correlations", Int. J. Heat Fluid Flow, Vol. 17, pp.386-396, (1996).

[2] Y. E. Boke, O. Aydin and H. D. Yildizay, "The Comparison of Experimental and Predicted Flame Temperature of Natural Gas Combustion", Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, Vol. 33, pp.1271-1280, (2011).

[3] S. Chander, and A. Ray, "Heat transfer characteristics of laminar methane/air flame impinging normal to a cylindrical surface", Experimental Thermal and Fluid Science, Vol. 32, pp.707-721 (2007).

[4] C. Cornaro, A.S. Fleischer, M. Rounds, and R. J. Goldstein, "Jet impingement cooling of convex semi-cylindrical surface", International Journal of Thermal Science, Vol. 40, pp. 890–898, (2001).

[5] L. L. Dong, C. S. Cheung, and C. W. Leung, "Heat transfer from an impinging premixed butane/air slot flame jet", Int. J. Heat Mass Transfer, Vol. 45, pp.979-992, (2002).

[6] S. S. Hou, and Y. C. Ko, "Influence of oblique angle and heating height on flame structure temperature field and efficiency of an impinging laminar jet flame", Energy Conversion and Management, Vol. 46, pp. 941–958, (2005).

[7] P. Kuntikana, and S. V. Prabhu, "Isothermal air jet and premixed flame jet pingement Heat transfer characterization and comparison", International Journal of Thermal Sciences, Vol. 100, pp. 401-415, (2016).

[8] G. K. Agrawal, S. Chakraborty, and S. K. Som, "Heat transfer characteristics of premixed flame impinging upwards to plane surfaces inclined with the flame jet axis". International Journal of Heat and Mass Transfer, Vol. 53, pp. 1899–1907, (2010).

[9] H. Lee, Y. S. Chung, and D. S. Kim, "Turbulent flow heat transfer measurement on curved surface with fully developed round impinging jet", International Journal of Heat and Fluid Flow, Vol. 18, pp.60–169, (1997).

[10] S. Tripathy, A. K. Rout, and M. K. Roul, "Heat Transfer due to Impinging Flame on Plane Surface", International Organization of Scientific Research, Vol. 13, pp. 27-34, (2016).

[11] A. Mirmohammadi, and F. Ommi, "Internal combustion engines in cylinder flow simulation improvement using nonlinear k-ε turbulence models", Journal of Computational and Applied Research in Mechanical Engineering, Vol. 5(1), pp. 61-69, (2015).

[12] S. Y. Ibrahim and O. D. Makinde, “Radiation effect on chemically reacting magneto hydrodynamics (MHD) boundary layer flow of heat and mass transfer through a porous vertical flat plate,” Int. J. Physical Sciences, Vol. 6, No. 6, pp. 1508-1516, (2011).

[13] L. R. Reddy, M. C. Raju, G. S. S. Raju and S. M. Ibrahim, “Chemical reaction and thermal radiation effects on MHD micropolar fluid past a stretching sheet embedded in a non-Darcian porous medium”, Journal of Computational and Applied Research in Mechanical Engineering, Vol. 6, No. 2, pp. 27-46, (2016).

[14] S. Mohammed Ibrahim and K. Suneetha, “Effects of thermal diffusion and chemical reaction on MHD transient free convection flow past a porous vertical plate with radiation, temperature gradient dependent heat source in slip flow regime”, Journal of Computational and Applied Research in Mechanical Engineering, Vol. 5, No. 2, pp. 83-95, (2015).

[15] J. Prakash, P. Durga Prasad, R. V. M. S. S. Kiran Kumar and S. V. K. Varma, ”Diffusion-thermo effects on MHD free convective radiative and chemically reactive boundary layer flow through a porous medium over a vertical plate”, Journal of Computational and Applied Research in Mechanical Engineering, Vol. 5, No. 2, pp. 111-126, (2015).

[16] M.J. Remie, M.F.G. Cremers, K.R.A.M. Schreel and L.P.H. de Goey, “Analysis of the heat transfer of an impinging laminar flame jet”, International Journal of Heat and Mass Transfer, Vol. 50, pp. 2816-2827, (2007).

[17] M. Gnaneswara Reddy, and N. Sandeep, “Free convective heat and mass transfer of magnetic bio-convective flow caused by a rotating cone and plate in the presence of nonlinear thermal radiation and cross diffusion”, Journal of Computational and Applied Research in Mechanical Engineering, Vol. 7, No. 1, pp. 1-21, (2017).

[18] Z. L. Wei, H. S. Zhen, C. W. Leung, C. S. Cheung and Z.H. Huang, “Heat transfer characteristics and the optimized heating distance of laminar premixed biogas hydrogen Bunsen flame impinging on a flat surface”, International Journal of Hydrogen Energy, Vol. 40, pp. 15723-15731, (2015).

[19] G. Singh, S. Chander and A. Ray, “Heat transfer characteristics of natural gas/air swirling flame impinging on a flat surface”, Experimental Thermal and Fluid Science, Vol. 41, pp. 165-176, (2012).

[20] R. C. Nayak, M. K. Roul, and S. K. Sarangi, "Experimental Investigation of Natural Convection Heat Transfer in Heated Vertical Tubes with Discrete Rings", Experimental Techniques, Vol. 41, pp. 585-603, (2017).

[21] R. C. Nayak, M. K. Roul, and S. K. Sarangi, "Natural Convection Heat Transfer in Heated Vertical Tubes with Internal Rings." Archives of Thermodynamics, Vol. 39(4), pp. 85-111, (2018)

[22] L. K. Sahoo, M. K. Roul, and R. K. Swain, "Natural convection heat transfer augmentation factor with square conductive pin fin arrays", Journal of Applied Mechanics and Technical Physics, Vol. 58, pp. 1115–1122, (2017).

[23] L. K. Sahoo, M. K. Roul, and R. K. Swain, "CFD Analysis of natural convection heat transfer augmentation from square conductive horizontal and inclined pin fin arrays", International Journal of Ambient Energy, Vol. 39, pp. 840-851, (2018)

[24] M. B. Gerdroodbary, M. Mokhtari, K. Fallah and H. Pourmirzaagha, "The influence of micro air jets on mixing augmentation of transverse hydrogen jet in supersonic flow", International Journal of Hydrogen Energy, Vol. 41 (47), pp.22497-22508, (2016).

[25] Y. Amini, M. Mokhtari, M. Haghshenasfard and M. B. Gerdroodbary, "Heat transfer of swirling impinging jets ejected from Nozzles with twisted tapes utilizing CFD technique", Case Studies in Thermal Engineering, Vol. 6, pp.104-115, (2015).

[26] M. B. Gerdroodbary, O. Jahanian and M. Mokhtari, "Influence of the angle of incident shock wave on mixing of transverse hydrogen micro-jets in supersonic crossflow", International Journal of Hydrogen Energy, Vol. 40, pp.9590-9601, (2015).

[27] M. B. Gerdroodbary, D.D. Ganji and Y. Amini, "Numerical study of shock wave interaction on transverse jets through multiport injector arrays in supersonic crossflow", Acta Astronautica, Vol. 115, pp.422-433, (2015).

[28] M. B. Gerdroodbary, M. Rahimi Takami and D.D. Ganji, "Investigation of thermal radiation on traditional Jeffery–Hamel flow to stretchable convergent/divergent channels", Case Studies in Thermal Engineering, Vol. 6, pp.28-39, (2015).

[29] K. Fallah, M. B. Gerdroodbary, A. Ghaderi and J. Alinejad, "The influence of micro air jets on mixing augmentation of fuel in cavity flame holder at supersonic flow", Aerospace Science and Technology, Vol. 76, pp.187-193, (2018).

[30] B. E. Poling J. M. Prausnitz and J. P. O’Connell, The Properties of Gases and Liquids, 5th ed., McGraw Hill Book Company, New York, (2001).

[31] B. F. Magnussen, and B. H. Hjertager, "On mathematical modelling of turbulent combustion with specified emphasis on soot formation and combustion", The combustion institute Cambridge USA, Vol. 16, pp. 719-729, (1977).

[32] T. H. Vander Meer, "Stagnation point heat transfer from turbulent low Reynolds number jets and flame jets". Expt. Thermal Fluid Sci. Vol. 4, pp. 115-126, (1991).

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