Moving Lids Direction Effects on MHD Mixed Convection in a Two-Sided Lid-Driven Enclosure Using Nanofluid

Document Type: Original Research Paper

Authors

1 Department of Mechanical Engineering, University of Birjand, Iran

2 Department of Mechanical Engineering, University of Guilan, Iran

Abstract

Magnetohydrodynamic (MHD) mixed convection flow of Cu–water nanofluid inside a two-sided lid-driven square enclosure with adiabatic horizontal walls and differentially heated sidewalls has been investigated numerically. The effects of moving lids direction, variations of Richardson number, Hartmann number, and volume fraction of nanoparticles on flow and temperature fields have been studied. The obtained results show that for a constant Grashof number (), the rate of heat transfer increases with a decrease in the Richardson and Hartmann numbers. Furthermore, an increase of the volume fraction of nanoparticles may result in enhancement or deterioration of the heat transfer performance depending on the value of the Hartmann and Richardson numbers and the configuration of the moving lids. Also, it is found that in the presence of magnetic field, the nanoparticles have their maximum positive effect when the top lid moves rightward and the bottom one moves leftward.

Keywords


[1] Kh. Al.Salem, H. F.Öztop, I. Pop, Y.Varol, Effects ofmoving lid direction on MHD mixed convection in alinearly heated cavity, Int. J. Heat Mass Transf. 55(2012) 1103-1112.

[2] J. Sarkar, A critical review on convective heat transfercorrelations of nanofluids, Renewable and SustainableEnergy Reviews. 15 (2011) 3271-3277.

[3] L. Godson, B. Raja, D.M. Lal, S. Wongwises,Enhancement of heat transfer using nanofluidsoverview, Renewable and Sustainable EnergyReviews. 14 (2010) 629-641.

[4] K. Khanafer, K. Vafai, M. Lightstone, Bouyancyheat transfer enhancement in a twoenclosure utilizing nanofluid, Int. J. Heat Mass Transf.46 (2003) 3639-3653.

[5] M.C. Ece, E. Buyuk, Natural-convection flow under amagnetic field in an inclined rectangular enclosure heated and cooled on adjacent walls, Fluid DynamicsResearch 38 (8) (2006) 564-590.

[6] S.M. Aminossadati, B. Ghasemi, Natural convectioncooling of a localized heat source atnanofluid-filled enclosure, European Journal ofMechanics- B/Fluids 28 (2009) 630

[7] Z. Alloui, P. Vasseur, M. Reggio, Natural convectionof nanofluids in a shallow cavity heated from below,International journal of Thermal sciences385-393.

[8] R.K. Tiwari, M.K. Das, Heat transfer augmentation in atwo-sided lid-driven differentially heated square cavityutilizing nanofluids, International Journal of Heat andMass Transfer 50 (2007) 2002-

[9] M. Muthtamilselvan, P. Kandaswamy, J. Lee, Heattransfer enhancement of copperlid-driven enclosure, Communications in NonlinearScience and Numerical Simulations 15 (2010) 15011510.

[10] H. Nemati, M. Farhadi, K. Sedighi, E. FattahiA.A.R Darzi, Lattice Boltzmann simulation ofnanofluid in lid driven cavity, InternationalCommunications of Heat and Mass Transfer 37 (2010)1528-1534.

[11] A. Arefmanesh, M. Mahmoodi, Effects of uncertaintiesof viscosity models for Al2mixed convection numerical simulations, Internationaljournal of Thermal sciences 50 (2011) 1706

[12] A.A. Abbasian Arani, S. Mazrouei Sebdani, M.Mahmoodi, A. Ardeshiri, M. Aliakbari, Numericalstudy of mixed convection flow in a lidwith sinusoidal heating on sidewalls using nanofluids,Superlattices and Microstructures 51 (2012) 893

[13] T. Grosan, C. Revnic, I. Pop, D.B. Ingham, Magneticfield and internal heat generation effects on the freeconvection in a rectangular cavity filled with a porousmedium, International Journal of Heat and MassTransfer 52 (2009) 1525–1533.

[14] M.M. Rahman, M.A. Alim, M.M.A. Sarker, Numericalstudy on the conjugate effect of joule heating andmagneto-hydrodynamics mixed convection in anobstructed lid-driven square cavityJournal of Heat and Mass Transfer 37 (2010) 524

[15] S. Sivasankaran, A. Malleswaran, J. Lee, P. SundarHydro-magnetic combined convection in a liddriven cavity with sinusoidal boundary conditions on both sidewalls, International Journal of Heat and MassTransfer 54 (2011) 512–525.

[16] H. F. Oztop, Kh. Al-Salem, I. Pop, MHD mixedconvection in a lid-driven cavity with corner heater,International Journal of Heat and Mass Transfer 54(2011) 3494–3504.

[17] C. Revnic, T. Grosan, I. Pop, D.B. Ingham, Magneticfield effect on the unsteady free convection flow in asquare cavity filled with a porous medium with aconstant heat generation, International Journal of Heatand Mass Transfer 54 (2011) 1734–1742.

[18] B. Ghasemi, S.M. Aminossadati, A. Raisi, Magneticfield effect on natural convection in a nanofluid-filledsquare enclosure, International Journal of ThermalSciences. 50 (2011) 1748-1756.

[19] M.A.Teamah,W.M.El-Maghlany, Augmentation ofnatural convective heat transfer in square cavity byutilizing nanofluids in the presence of magnetic fieldand uniform heat generation/absorption, International Journal of Thermal Sciences 58 (2012) 130-142.

[20] H. Nemati, M. Farhadi, K. Sedighi, H.R. Ashorynejad,E. Fattahi, Magnetic field effects on naturalconvection flow of nanofluid in a rectangular cavityusing the Lattice Boltzmann model, Scientia Iranica B19 (2012) 303–310.

[21] H.C. Brinkman, The viscosity of concentratedsuspensions and solutions, Journal of Chemical Physics20 (1952) 571–581.

[22] H.E. Patel, T. Pradeep, T. Sundararajan, A. Dasgupta,N. Dasgupta, S.K. Das, A micro- convection model forthermal conductivity of nanofluid, Pramana-J. Phys.65 (2005) 863–869

[23] K.A.Hoffmann, S.T. Chiang, Computational FluidDynamics,Engineering Education System. 1 (2000).

[24] S.M. Aminossadati, A. Kargar, B. Ghasemi, Adaptivenetwork-based fuzzy inference system analysis ofmixed convection in a two-sided lid-driven cavityfilled with a nanofluid, International Journal ofThermal Sciences. 52 (2012) 102-111.