Numerical Investigation of Mixed Convection Heat Transfer of Nanofluid in a Lid Driven Square Cavity with Three Triangular Heating Blocks

Boulahia, Zoubair; Wakif, Abderrahim; Sehaqui, Rachid

doi:10.5120/ijca2016910227

Cited by 14 publications

(10 citation statements)

References 20 publications

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“…A lid-driven cavity is a technical term for a completely enclosed chamber containing a fluid in which one of its walls undergoes horizontal motion [7][8][9][10]. Several studies have been carried out on this subject for the purpose of presenting the elements that contribute to raising the heat transfer between the internally retained fluid and the chamber walls [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Entropy Generation in 2D Lid-Driven Porous Container with the Presence of Obstacles of Different Shapes and under the Influences of Buoyancy and Lorentz Forces

et al. 2022

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This paper includes a numerical investigation of a hybrid fluid containing 4% of Al2O3-Cu nanoparticles in a lid-driven container. The upper wall of the container has a high temperature and is movable. The lower wall is cool and wavy. An obstacle is set in the middle of the container for its effect on thermal activity. The medium is permeable to the fluid, and the entire system is immersed in a fixed-effect magnetic field. The digital simulation is achieved using the technique of Galerkin finite element (GFEM) which solves the differential equations. This investigation aims to know the pattern of heat transfer between the lateral walls and the lower wall of the container through the intervention of a set of conditions and criteria, namely: the strength of the magnetic field changes in the range of (Ha = 0 to 100); the chamber porosity varies in the range of (Da = 10−5 to 10−2); the strength of buoyancy force is varied according to the Grashof number (Gr = 102 to 104); the cross-section of the baffle includes the following shapes—elliptical, square, triangular and circular; the surface of the lower wall contains waves; and the number changes (N = 2 to 8). Through this research, it was concluded that the triangular shape of the baffle is the best in terms of thermal activity. Also, increasing the number of lower-wall waves reduces thermal activity. For example, the change in the shape of the obstacle from the elliptical to triangular raises the value of Nu number at a rate of 15.54% for Ha = 0, N = 8, and Gr = 104.

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Section: Introductionmentioning

confidence: 99%

Entropy Generation in 2D Lid-Driven Porous Container with the Presence of Obstacles of Different Shapes and under the Influences of Buoyancy and Lorentz Forces

et al. 2022

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“…Hayat et al [17] examined hydromagnetic properties in the 3D flow of couple stress nano liquid. Numerical treatment for mixed convective nanoliquid flow in a lid-driven square cavity with three triangular heating blocks is reported by Boulahia et al [18]. Hayat et al [19] discussed the impact of the hydromagnetic 3D flow of nanoliquid induced by a nonlinear actuating sheet with the convective condition.…”

Section: Introductionmentioning

confidence: 99%

A numerical study of Two-Dimensional Magnetized Bioconvective Unsteady fluid flow in two Stretching Parallel Plates with Internal Heating and Chemical Reaction Effects

Khan

Rasheed

2022

Preprint

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Driven by scientific development, the bio-convection unsteady nanofluid flow has gained enormous attention in research due to its applications in various disciplines such as biosensors, biological polymer synthesis, pharmaceutics, microbial improved oil recovery, and environment-friendly applications. As such, this study aims to investigate the mixed bio-convective magnetized and electrically conducting 2-dimensional flow in view of two extended wall channels subjected to MHD, thermal radiation, and binary chemical reaction effects. A mathematical framework is developed underflow of a nonofluid based on certain conditions. The implication of Soret and Dufour impacts is considered in the model problem. Such a nonlinear mathematical model is tackled by invoking similarity solutions for mass conservation, momentum, temperature, concentration, and micro-organisms expressions. The dimensionless principles (ODEs) are addressed by the efficacy Nactsheim-Swigert shooting along with the iteration process, explicitly through shooting technique (RK-4). The outlines of distinguished emerging constraints on flow fields are offered through the plotted graphic visuals. The impact of physical quantities of engineering interest is offered numerically via tabulated values.

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“…Triveni, Panua, and Sen [22] researched about the impacts of cooled wall in different position on free convective flowing within triangle shape enclosure. Boulahia et al [23] studied respecting combined convection temperature disposal of nanofluid within an enclosure using various triangle shape warming obstacles. Rahman et al [24] studied in regarding to MHD usual convective temperature flow within isosceles triangle shape cavity charged by nanofluid.…”

Section: Introductionmentioning

confidence: 99%

Hydromagnetic Natural Convection Heat Transfer of Copper-Water Nanofluid within a Right-Angled Triangular Cavity

Tarikul

Nazma

2020

International Journal of Thermofluid Science and Technology

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This investigation on free convection flow and temperature transfer within a right-angled triangular cavity loaded uniformly by Cu-H2O nanofluid including heated boundary conditions at horizontal side is performed numerically. The standing side is cooled at low heat while the hypotenuse of the triangular is insulated. The governing non-dimensional highly non-linear partial differential equations are performed by employing Galerkin weighted residual finite element method. The simulated numerical findings are exhibited using streamline contours, isotherm contours and average Nusselt number for the sampling parameters named nanoparticles volume fraction, Rayleigh number, and Hartmann number. The outcome demonstrates temperature transfer value reduces for the enhancement of Hartman number whereas improve significantly for the increase of buoyancy driven parameter Rayleigh number. Also, an excellent average temperature transfer is observed for uniform heated boundary condition (case I) compared to non-uniform thermal boundary conditions (case II & case III).

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Numerical Investigation of Mixed Convection Heat Transfer of Nanofluid in a Lid Driven Square Cavity with Three Triangular Heating Blocks

Cited by 14 publications

References 20 publications

Entropy Generation in 2D Lid-Driven Porous Container with the Presence of Obstacles of Different Shapes and under the Influences of Buoyancy and Lorentz Forces

Entropy Generation in 2D Lid-Driven Porous Container with the Presence of Obstacles of Different Shapes and under the Influences of Buoyancy and Lorentz Forces

A numerical study of Two-Dimensional Magnetized Bioconvective Unsteady fluid flow in two Stretching Parallel Plates with Internal Heating and Chemical Reaction Effects

Hydromagnetic Natural Convection Heat Transfer of Copper-Water Nanofluid within a Right-Angled Triangular Cavity

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