Double-Diffusive Buoyancy and Marangoni Convection in a Hybrid Nanofluid Filled Cylindrical Porous Annulus

Kanimozhi, B.; Muthtamilselvan, M.; Al‐Mdallal, Qasem M.; Abdalla, Bahaaeldin

doi:10.1007/s12217-022-09926-7

Cited by 14 publications

(5 citation statements)

References 26 publications

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“…Nithyadevi and Yang 1 discussed the Natural convection with solute concentration Dufour and the Soret effect in a square chamber. Kanimozhi et al 2 examined the buoyancy of Marangoni free convection with Dufour and Soret effects. Muthtamilselvan et al 3 have investigated the occurrence of two‐dimensional fluid velocity flow and the free convection of the micro‐polar fluid.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer characteristics of thermo‐diffusion (Soret) and diffusion‐thermo (Dufour) effects in a square cavity containing a non‐Darcy porous medium

Krishnamoorthy,

Ramachandra Prasad

2024

Heat Trans

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The impact of the double‐diffusive natural convection of water in a square enclosure with diffusion‐thermo and thermo‐diffusion around the non‐Darcy porous medium is studied numerically. The top and bottom side walls of the cavity are maintained at constant temperatures, while the vertical left and right walls are considered to be cold. Water is considered the working fluid. The resulting nondimensional partial differential equation is solved by the Marker and Cell (MAC) method by using a staggered grid system. The Dufour and Soret effects processes will be a significantly essential role in the double‐diffusive velocity flow processes. For different values of the relevant parameters, the fluid flow velocity, temperature, and concentration are presented for various Rayleigh numbers, Prandtl numbers, non‐Darcy, thermo‐diffusion, and diffusion‐thermo. The streamlines, isotherms, and iso‐concentration contours are obtained using the MATLAB software. Finally, it is observed that the Nusselt numbers increased with non‐Darcy, thermo‐diffusion, and Rayleigh numbers and decreased with diffusion‐thermo effects.

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Section: Introductionmentioning

confidence: 99%

Heat transfer characteristics of thermo‐diffusion (Soret) and diffusion‐thermo (Dufour) effects in a square cavity containing a non‐Darcy porous medium

Krishnamoorthy,

Ramachandra Prasad

2024

Heat Trans

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“…In their study, heating and concentration are nonuniform at the bottom side and uniform at the left vertical side. Kanimozhi et al [24] numerically investigated the impacts of Soret and Dufour on the heat and solute transfer of an Ag/Mgo-water hybrid nanofluid in a cylinder-shaped porous cavity. Pundir et al [25] investigated the linear stability of a fluid layer including a hybrid nanofluid.…”

Section: Introductionmentioning

confidence: 99%

“…Kanimozhi et al. [24] numerically investigated the impacts of Soret and Dufour on the heat and solute transfer of an Ag/Mgo‐water hybrid nanofluid in a cylinder‐shaped porous cavity. Pundir et al.…”

Section: Introductionmentioning

confidence: 99%

Double diffusion of rotated z‐shaped and sloshing fins in a nanofluid‐porous cavity

Alsedias,

Aly

2024

Z Angew Math Mech

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This work examines the double diffusion of rotated Z‐shaped and sloshing fins inside a nanofluid‐porous cavity. The novelty of this research lies in its utilization of the ISPH method to handle the complex fluid‐structure interactions occurring at double diffusion within the nanofluid‐porous cavity. Two thermal/solutal conditions of the rotated Z shaped entitled C1 (), and C2 () are conducted in this work. The ISPH method solves the nonlinear systems of the fluid‐structure interactions during thermosolutal convection. The impacts of the inclined magnetic field and Soret–Dufour numbers are discussed. The Z shaped rotates circularly around its center and the four fins are sloshing on the boundaries. Natural convection is dominant because the rotation speed is slow, and the buoyancy force is strong. The obtained simulations revealed the changes in the isotherms, isoconcentration, and the nanofluid velocity under the variations of boundary conditions in Z shaped. It is seen that C1 always supports higher velocity, temperature, and concentration as well as mean Nusselt number ‐Sherwood number compared to C2. The Soret number plays a good role in the improvement of double diffusion and nanofluid velocity compared to the Dufour number which has fewer contributions.

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“…Many researchers studied nano fluid saturated porous media without partition wall [14][15][16][17][18][19][20][21]. But, no one studied it in spherical geometry with diathermal partition wall.…”

Section: Introductionmentioning

confidence: 99%

Natural Convection in a Spherical Porous Annulus with Diathermal Partition Wall

Sangita

2024

ARFMTS

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The influence of the diathermal partition wall on natural convection in a fluid-saturated porous medium has been numerically studied in the present paper. A concentric diathermal wall of infinitesimal thickness is inserted in the fluid-saturated spherical porous annulus. Due to the flow symmetry along the vertical axis, only half of the sphere is considered for simulation. A Successive Accelerated Replacement Scheme has been used to solve the Darcy flow model using the finite difference method. The average Nusselt number value decreases with the presence of a partition wall within the fluid-saturated spherical porous annulus. The percentage decrease in average Nusselt number value depends upon the position of the diathermal wall within the width of the spherical annulus. There is about a 50% reduction in the average Nusselt number with a diathermal partition wall for the cases considered in this work. The results of the present investigation will help in the proper design of porous insulation in spherical porous containers for the storage of thermal energy.

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Double-Diffusive Buoyancy and Marangoni Convection in a Hybrid Nanofluid Filled Cylindrical Porous Annulus

Cited by 14 publications

References 26 publications

Heat transfer characteristics of thermo‐diffusion (Soret) and diffusion‐thermo (Dufour) effects in a square cavity containing a non‐Darcy porous medium

Heat transfer characteristics of thermo‐diffusion (Soret) and diffusion‐thermo (Dufour) effects in a square cavity containing a non‐Darcy porous medium

Double diffusion of rotated z‐shaped and sloshing fins in a nanofluid‐porous cavity

Natural Convection in a Spherical Porous Annulus with Diathermal Partition Wall

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