Numerical investigation of the effects of geometric parameters of heaters on mixed covection in a lid‐driven cavity filled with different nanofluids

Salari, Mostafa; Mohammadtabar, Ali; Mohammadtabar, Mohammad

doi:10.1002/htj.21287

Cited by 2 publications

(2 citation statements)

References 35 publications

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“…In other words, they are fluids that are obtained from a mixture of base fluid and nanoparticles. Addition of nanoparticles to the base fluid enhances thermal properties of the over all fluid; Salari et al . and Aminfar et al .…”

Section: Introductionmentioning

confidence: 99%

Heat transfer in the flow of blood‐gold Carreau nanofluid induced by partial slip and buoyancy

Kọrikọ

Animasaun

Mahanthesh

et al. 2018

Heat Trans. Asian Res.

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Dynamics of blood containing gold nanoparticles on a syringe and other objects with a nonuniform thickness is of importance to experts in the industry. This study presents the significance of partial slip (i.e. combination of linear stretching and velocity gradient) and buoyancy on the boundary layer flow of blood-gold Carreau nanofluid over an upper horizontal surface of a paraboloid of revolution (uhspr). In this report, the viscosity of the Carreau fluid corresponding to an infinite shear-rate is assumed as zero, meanwhile, the viscosity corresponding to zero shear-rate, density, thermal conductivity, and heat capacity were assumed to vary with the volume fraction of nanoparticles. The governing equation that models the transport phenomenon were non-dimensionalized and parameterized using suitable similarity variables and solved numerically using classical Runge-Kutta method with shooting techniques and MATLAB bvp4c package for validation. The results show that temperature distribution across the flow decreases more significantly with buoyancy-related parameter when the influence of partial slip was maximized. Maximum velocity of the flow is ascertained at larger values of partial slip and buoyancy parameters. At smaller values of Deborah number and large values of volume fraction, 806

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Section: Introductionmentioning

confidence: 99%

Heat transfer in the flow of blood‐gold Carreau nanofluid induced by partial slip and buoyancy

Kọrikọ

Animasaun

Mahanthesh

et al. 2018

Heat Trans. Asian Res.

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“…These orifices have different widths. Moreover, there are other works on mixed convection in an enclosure under different situations 20‐26 …”

Section: Introductionmentioning

confidence: 99%

Computational study of thermal buoyancy from two confined cylinders within a square enclosure wifth single inlet and outlet ports

Laidoudi

Makinde

2020

Heat Trans

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This article is devoted to investigating the mixed convection arising from two equally hot circular cylinders embedded in a square cavity of adiabatic surfaces. This cavity is filled with an incompressible fluid and contains single entry and outlet orifices. The heated cylinders are assumed to be arranged side‐by‐side with a fixed gap within the square cavity. Based on some simplifying assumptions, the nonlinear governing equations that express the principle of conservation of mass, momentum, and energy are obtained and numerically solved using a Computational fluid dynamics package ANSYS‐CFX with finite volume technique. Pertinent results showing the roles of embedded parameters such as Richardson number (Ri = 0 to 1) and Reynolds number (Re = 1 to 40) at Prandtl number (Pr = 1) on the overall fluid flow and temperature patterns are graphically depicted in the form of representative streamlines and isotherms. The values of average Nusselt number and total drag coefficient (CD) for both representative cylinders are also computed and discussed. Generally, an increase in buoyancy force augments the effectiveness of heat transfer only of the down cylinder. Also, a rise in Re and/or Ri numbers augment the flow instability.

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Numerical investigation of the effects of geometric parameters of heaters on mixed covection in a lid‐driven cavity filled with different nanofluids

Abstract: In this paper, the effects of the thicknesses and locations of two rectangular heaters, located on the bottom and one side of on an enclosure, on mixed convection of nanofluid flows in a lid-driven cavity are numerically investigated.

Cited by 2 publications

References 35 publications

Heat transfer in the flow of blood‐gold Carreau nanofluid induced by partial slip and buoyancy

Heat transfer in the flow of blood‐gold Carreau nanofluid induced by partial slip and buoyancy

Computational study of thermal buoyancy from two confined cylinders within a square enclosure wifth single inlet and outlet ports

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