年間 12 号発行
ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508
IF:
2.3
5-Year IF:
1.7
Immediacy Index:
1
Eigenfactor:
0.00067
JCI:
0.47
SJR:
0.282
SNIP:
0.632
CiteScore™::
3
H-Index:
42
Indexed in
MASS AND HEAT TRANSFERS BY FORCED CONVECTION DURING LIQUID FILM EVAPORATION IN A CHANNEL WITH A BUILT-IN POROUS SQUARE CYLINDER
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要約
The aim of this numerical work is to study the improvement of the heat and mass transfers during the evaporation of a liquid film with neglected thickness in a heated channel with a built-in porous square cylinder. The cylinder has a constant porosity and permeability. The calculations have been completed for a Reynolds number ranging from 20 to 100, Darcy number Da ≤ 10-6, and a blockage ration of H/h = 1/4. To achieve this, we solved the classic equation of forced convection and the Darcy-Brinkman-Forchheimer model. Results are presented to show the influence of the porous cylinder on the mass transfer. There is an improvement in the mass transfer with the presence of the porous cylinder. This improvement is greater with an increase in air inlet velocity and heat flux density. It is also greater with a decrease in temperature and relative humidity of the air at the inlet. At Da = 10-6, the flow does not penetrate through the porous cylinder; the flow pattern is similar to that of a solid square cylinder.With an increase of the Darcy number, the flow starts to pass through and around the cylinder. Finally, a correlation has been proposed for the Sherwood number as a function of the Reynolds and Biot numbers.
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Basu, A.J. and Khalili, A., Computation of Flow through a Fluid–Sediment Interface in a Benthic Chamber, Phys. Fluids, vol. 11, no. 6, pp. 1395–1405, 1999.
-
Bhattacharyya, S., Dhinakaran, S., and Khalili, A.L., Fluid Motion around and through a Porous Cylinder, Chem. Eng. Sci., vol. 61, pp. 4451–4461, 2006.
-
Breuer, M., Bernsdorf, J., Zeiser, T., and Durst, F., Accurate Computations of the Laminar Flow past a Square Cylinder based on Two Different Methods: Lattice-Boltzmann and Finite-Volume, Int. J. Heat Fluid Flow, vol. 21, pp. 186–196, 2000.
-
Chen, G.M. and Tso, C.P., Forced Convection with Viscous Dissipation using a Two-Equation Model in a Channel Filled by a Porous Medium, Int. J. Heat Mass Transf., vol. 54, pp. 1791–1804, 2011a.
-
Chen, G.M. and Tso, C.P., Effects of Viscous Dissipation on Forced Convective Heat Transfer in a Channel Embedded in a Power- Law Fluid Saturated Porous Medium, Int. Commun. Heat Mass Transf., vol. 38, pp. 57–62, 2011b.
-
Cheraghi, M., Raisee Dehkordi, M., and Moghaddami, M., Effect of Cylinder Proximity to theWall on Channel Flow Heat Transfer Enhancement, C.R. Mec., vol. 342, pp. 63–72, 2014.
-
Dhiman, A.K., Chhabra, R.P., Sharma, A., and Eswaran, V., Effects of Reynolds and Prandtl Numbers on Heat Transfer across a Square Cylinder in the Steady Flow Regime, Numer. Heat Transf., Part A, vol. 49, pp. 717–731, 2006.
-
Dhinakaran, S. and Ponmozhi, J., Heat Transfer from a Permeable Square Cylinder to a Flowing Fluid, Energy Convers. Manage., vol. 52, pp. 2170–2182, 2011.
-
Ergun, S., Fluid Flow through Packed Columns, Chem. Eng. Prog., vol. 48, pp. 89–94, 1952.
-
Guerroudj, N. and Kahalerras, H., Mixed Convection in a Channel Provided with Heated Porous Blocks of Various Shapes, Energy Convers. Manage., vol. 51, no. 3, pp. 505–517, 2010.
-
Haji-Sheikh, A., Nield, D.A., and Hooman, K., Heat Transfer in the Thermal Entrance Region for Flow through Rectangular Porous Passages, Int. J. Heat Mass Transf., vol. 49, pp. 3004–3015, 2005.
-
Hung, Y.M. and Tso, C.P., Temperature Variations of Forced Convection in Porous Media for Heating and Cooling Processes: Internal Heating Effect of Viscous Dissipation, Transp. Porous Media, vol. 75, pp. 319–332, 2008.
-
Jue, T.C., Numerical Analysis of Vortex Shedding behind a Porous Cylinder, Int. J. Numer. Methods Heat Fluid Flow, vol. 14, pp. 649–663, 2004.
-
Klekar, K.M. and Patankar, S.V., Numerical Prediction of Vortex Shedding behind Square Cylinders, Int. J. Numer. Meth. Fluids, vol. 14, pp. 327–341, 1992.
-
Korichi, A. and Oufer, L., Etude Numerique de L’ecoulement Instationnaire et du de Transfert de Chaleur Autour d’un Conduite de Section Carre Dans un Canal, Sci. Tech., no. 25, pp. 55–61, 2007.
-
Laatar, A.H., Benahmed, M., Belghith, A., and Le Quere, P., 2D Large Eddy Simulation of Pollutant Dispersion around a Covered Roadway, J. Wind Eng. Ind. Aerodyn., vol. 90, pp. 617–637, 2002.
-
Low, H.T., Bai, H.X., Yu, P., Zeng, Y., and Winoto, S.H., Fluid Dynamics and Mass Transfer in a Perfusion Bioreactor with a Porous Wall, Int. J. Mater., Mech. Manuf., vol. 2, no. 3, pp. 230–234, 2014.
-
Meis, M., Varas, F., Vel´azquez, A., and Vega, J.M., Heat Transfer Enhancement in Micro-Channels Caused by Vortex Promoters, Int. J. Heat Mass Transf., vol. 53, pp. 29–40, 2010.
-
Moussaoui, M.A., Jami, M., Mezrhab, A., and Naji, H., MRT-Lattice Boltzmann Simulation of Forced Convection in a Plane Channel with an Inclined Square Cylinder, Int. J. Therm. Sci., vol. 49, pp. 131–142, 2010.
-
Nasri, Z., Hatem, L., and Balti, J., Natural Convection Enhancement in an Asymmetrically Heated Channel-Chimney System, Int. J. Therm. Sci., vol. 90, pp. 122–134, 2015.
-
Nield, D.A., Kuznetsov, A.V., and Xiong, M., Thermally Developing Forced Convection in a Porous Medium: Parallel Plate Channel withWalls at Uniform Temperature, with Axial Conduction and Viscous Dissipation Effects, Int. J. Heat Mass Transf., vol. 46, pp.
-
Noymer, P.D., Glicksman, L.R., and Devendran, A., Drag on a Permeable Cylinder in Steady Flow at Moderate Reynolds Number, Chem. Eng. Sci., vol. 53, no. 16, pp. 2859–2869, 1998.
-
Okajima, A., Strouhal Numbers of Rectangular Cylinders, J. Fluid Mech., vol. 123, pp. 379–398, 1982.
-
Salimi, M.R., Rahni, M.T., and Jam, F., Pore-Scale Simulation of Fluid Flow Passing over a Porously Covered Square Cylinder Located at the Middle of a Channel, using a Hybrid MRT-LBM–FVM Approach, Theor. Comput. Fluid Dyn., vol. 29, pp. 171–191, 2015.
-
Somasundaram, P. and Mysels, K.J., Steady-State Flow in a Porous Cylinder with Permeable Walls and Restricted or Unrestricted Ends, J. Fluids Eng., vol. 97, pp. 379–380, 1975.
-
Taieb, S., Laatar, A.H., and Balti, J., Natural Convection in an Asymmetrically Heated Vertical Channel with an Adiabatic Auxiliary Plate, Int. J. Therm. Sci., vol. 74, pp. 24–36, 2013.
-
Terzi, A., Foudhil, W., Harmand, S., and Ben Jabrallah, S., Liquid Film Evaporation Inside an Inclined Channel: Effect of the Presence of a Porous Layer, Int. J. Therm. Sci., vol. 109, pp. 136–147, 2016.
-
Turki, S., Abbassi, H., and Ben Nasrallah, S., Two-Dimensional Laminar Fluid Flow and Heat Transfer in a Channel with a Built-in Heated Square Cylinder, Int. J. Therm. Sci., vol. 42, pp. 1105–1113, 2003.
-
Valipour, M.S., Rashidi, S., Bovand, M., and Masoudi, R., Numerical Modeling of Flow around and through a Porous Cylinder with Diamond Cross Section, Eur. J. Mec. B/Fluids, vol. 46, pp. 74–81, 2014.
-
Wu, H.-W. and Wang, R.-H., Convective Heat Transfer over a Heated Square Porous Cylinder in a Channel, Int. J. Heat Mass Transf., vol. 53, pp. 1927–1937, 2010.
-
Yu, P., Zeng, Y., Lee, T.S., Bai, H.X., and Low, H.T., Wake Structure for Flow past and through a Porous Square Cylinder, Int. J. Heat Fluid Flow, vol. 31, pp. 141–153, 2010.