Numerical simulation of double-diffusive mixed convective flow in rectangular enclosure with insulated moving lid

Teamah, Mohamed A.; El‐Maghlany, Wael M.

doi:10.1016/j.ijthermalsci.2010.04.023

Cited by 95 publications

(29 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2 and there is no variation upon further refinement. Upon comparing the results of the present code with Teamah and Maghlany, (2010) at Pr = 0.7, N = 1.0 and Ri = 1.0, the contours of streamline, concentration and temperature for a rectangular two-sided lid-driven cavity shows good agreement, thereby validating the legitimacy of our code (as shown in Fig. 3).…”

Section: Resultssupporting

confidence: 73%

“…3 Comparison of present numerical study with Teamah and Maghlany (2010) for Pr = 0.7, N = 1.0, Ri = 1.0, RaT = 0.7×10 4 and top wall moves towards left.…”

Section: Present Numerical Studymentioning

confidence: 92%

“…The Soret effect is responsible for the increase in heat transfer and decreases in the masstransfer, but the Dufour effect does the vice-versa. The doublediffusive mixed convection in a rectangular enclosure with insulated moving lid is numerically studied by Teamah et al (2010). They have concluded that the heat and mass transfer is greater when the upper wall is moving towards right than when it is moving towards left in case of positive N. On the other hand, same phenomena are observed in a reverse manner in case of negative N for high values of Ri.…”

Section: Frontiers In Heat and Mass Transfermentioning

confidence: 98%

See 2 more Smart Citations

Computational Investigation of Double-Diffusive Mixed Convective Flow in an Enclosed Square Cavity With Soret Effect

Satheesh¹,

Mohan²

2017

Frontiers in Heat and Mass Transfer

View full text Add to dashboard Cite

In this study, a two-dimensional steady state double-diffusive mixed convective flow in a square cavity with Soret effect is presented. The numerical investigation is considered with two different conditions, (a) top and bottom walls move with same velocity (Uo) towards right and (b) top wall moves towards right and bottom wall moves towards left with the same velocity (Uo). The left and right walls remain stationary. The top and bottom walls are adiabatic; the left wall is maintained at high temperature and concentration. The right wall is maintained at low temperature and concentration. INTRODUCTIONThe combined effect of temperature and concentration gradients along with some externally applied forces in which heat and mass transfer occur simultaneously is known as double-diffusive mixed convection. Double-diffusive mixed convection in cavities is an area extensively investigated because of the multitude of engineering applications they are often encountered in. The aforementioned areas of research include nuclear reactors, solar collectors, cooling of electronic systems, chemical processing equipment, etc. Double-diffusive convection is also referred to as buoyancy driven flow induced by both temperature and concentration gradients. Bergman (1989) studied the influence of Soretinduced solutal buoyancy forces on the hydrodynamics and heat transfer rates of an initially uniform concentration fluid contained in an enclosure associated with natural convection. The effect of Soret phenomenon may or may not be important in natural convection. However, the Soret effect must be included in the analysis of the water-based binary fluid. Reima et al. (1993) carried out numerical studies for mixed convection in a driven cavity with a stable vertical temperature gradient. Flow is generated by the top horizontal boundary wall, which slides in its own plane at constant speed. A stabilizing externally-applied vertical temperature gradient is imposed on the system boundaries: the top wall is maintained at a higher temperature than the bottom wall. It was observed that at Ri < 1.0, in the bulk of the interior, fluids are well mixed, and temperature variations are small. For Ri > 1.0, the majority of the fluid interior is stagnant. . The findings were, that heat and mass transfer differs with the change in magnitude of the temperature and concentration gradients. These gradients decide the thermal and solutal dominant regions in the cavity. The effect of double-diffusive natural convection of water in a partially heated enclosure with Soret and Dufour effect around the density maximum is numerically analyzed by Nithyadevi et al. (2009). The temperature and concentration between the two walls are varied. They found that the rate of heat and mass transfer increases when the values of thermal Ra increase in all heating locations Frontiers in Heat and Mass TransferAvailable at www.ThermalFluidsCentral.org

show abstract

Section: Resultssupporting

confidence: 73%

“…3 Comparison of present numerical study with Teamah and Maghlany (2010) for Pr = 0.7, N = 1.0, Ri = 1.0, RaT = 0.7×10 4 and top wall moves towards left.…”

Section: Present Numerical Studymentioning

confidence: 92%

Section: Frontiers In Heat and Mass Transfermentioning

confidence: 98%

See 1 more Smart Citation

Computational Investigation of Double-Diffusive Mixed Convective Flow in an Enclosed Square Cavity With Soret Effect

Satheesh¹,

Mohan²

2017

Frontiers in Heat and Mass Transfer

View full text Add to dashboard Cite

show abstract

“…The governing equations for the problem under consideration are based on the balance laws of mass, momentum, thermal energy and concentration in two dimensions. Following the previous assumptions, these equations can be written in the non-dimensional form as Teamah and El-Maghlany [20]:…”

Section: Mathematical Formulationmentioning

confidence: 99%

Finite element simulation of mixed convection heat and mass transfer in a right triangular enclosure

Chee

Öztop

Rahman

et al. 2012

International Communications in Heat and Mass Transfer

View full text Add to dashboard Cite

“…Khanafer et al [7] investigated numerically unsteady laminar mixed convection heat transfer in a lid driven cavity. Teamah et al [8] analyzed the numerical simulation of double-diffusive mixed convective flow in rectangular enclosure with insulated moving lid. Saha et al [9] have performed the numerical effect of internal heat generation or absorption on MHD (magnetohydrodynamics) mixed convection flow in a lid driven cavity.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydromagnetic Mixed Convection Double Lid-Driven Square Cavity with Inside Elliptic Heated Block

Munshi

Алим

2017

J. Sci. Res.

View full text Add to dashboard Cite

Mixed convection heat transfer in a two-dimensional the effect of hydromagnetic mixed convection in a double lid driven square cavity with inside elliptic heated block is studied numerically. The left wall of the square cavity and inside the elliptic block was kept at T h while the right wall of the square cavity at a cold temperature T c with T h > T c . The lid is assumed to be upper wall moving in left to right and lower wall right to left directions respectively. The magnetic field of strength B is applied parallel to x-axis. Result is presented firstly for different Reynolds number ( ), Prandtl number Pr = 0.733 and presented for different Grashof number . The numerical results studied the effect of Reynolds number, Grashof number and buoyancy ratio on the local values. It is found that direction of lid and different elliptic heated block are more effective on heat and mass transfer on fluid flow with increasing magnetic field for all studied parameters.

show abstract

Numerical simulation of double-diffusive mixed convective flow in rectangular enclosure with insulated moving lid

Cited by 95 publications

References 27 publications

Computational Investigation of Double-Diffusive Mixed Convective Flow in an Enclosed Square Cavity With Soret Effect

Computational Investigation of Double-Diffusive Mixed Convective Flow in an Enclosed Square Cavity With Soret Effect

Finite element simulation of mixed convection heat and mass transfer in a right triangular enclosure

Effect of Hydromagnetic Mixed Convection Double Lid-Driven Square Cavity with Inside Elliptic Heated Block

Contact Info

Product

Resources

About