Accurate finite volume investigation of nanofluid mixed convection in two-sided lid driven cavity including discrete heat sources

Moumni, Hamdi; Welhezi, Hedia; Djebali, Ridha; Sediki, Ezeddine

doi:10.1016/j.apm.2014.12.035

Cited by 52 publications

(20 citation statements)

References 37 publications

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“…Results obtained are in excellent agreement with those of [8,49,50,51,52,53]. Grid independent solution for the problem is achieved through grid refinement study and results for average Nusselt number has been given in Table 3 for Re = 100, Ri = 20, φ = 0.2, Ha = 50, γ = 15 • .…”

Section: Code Validation and Grid Independence Testsupporting

confidence: 72%

See 1 more Smart Citation

MHD mixed convection and entropy generation of water–alumina nanofluid flow in a double lid driven cavity with discrete heating

Hussain

Mehmood

Sagheer

2016

Journal of Magnetism and Magnetic Materials

106

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Section: Code Validation and Grid Independence Testsupporting

confidence: 72%

“…They found that Richardson number and the moving parameter play a dominant role in the transfer of heat and mass and other flow characteristics within a cavity. More studies on mixed convection in cavity can be found in [5,6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

MHD mixed convection and entropy generation of water–alumina nanofluid flow in a double lid driven cavity with discrete heating

Hussain

Mehmood

Sagheer

2016

Journal of Magnetism and Magnetic Materials

106

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“…The e ective density at the reference temperature, thermal di usivity, the heat capacitance, and the thermal expansion coe cient of the nano uid based on classical models can be written as follows [9]:…”

Section: Mathematical Modellingmentioning

confidence: 99%

“…They found that the external magnetic eld has a tendency to slow down the convection ow within the enclosure. Moumni et al [9] utilized an accurate nite volume method to study Cu, Ag, Al 2 O 3 , and TiO 2 -water nano uids in a two-sided liddriven cavity including discrete heat sources. Results indicate that the nanoparticles with larger thermal conductivity usually cause larger enhancement in heat transfer rate of nano uid.…”

Section: Introductionmentioning

confidence: 99%

Natural convection and entropy generation of ultrafine atmospheric aerosols in the presence of hydrodynamic partial slip and thermal radiation due to solar energy

Ghaffarpasand

2017

Scientia Iranica

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Abstract. Combined e ects of hydrodynamic partial slip, thermal radiation due to solar energy, and nanoparticles volume fraction on natural convection and entropy generation of atmospheric ultra ne aerosols sample enclosed within a two-sided lid-driven cavity are studied numerically in the present contribution. Partial slip e ect is taken into account along the two horizontal moving walls, and thermal radiation is considered through Rosseland approximation. The governing equations are solved using an accurate nite volume method based on SIMPLE algorithm. The impact of Brownian motion of nanoparticles is also considered in this study, whereby KKL (Koo-Kleinstreuer-Li) correlation is utilized for simulating the e ective thermal conductivity and viscosity of nano uid. The heatline visualization technique is also utilized to study the energy ux within the cavity. A comprehensive study is conducted on the controlling parameters, including partial slip coe cient ( = 0 5), radiation parameter (Rd = 0 2), and nanoparticles volume fraction ( = 0 4%), which in uence the ow and heat transfer characteristics. Results show that the partial slip usually eliminates the e ect of mechanical forces provoked by the moving lids. Moreover, thermal radiation homogenizes the medium thermally, which results in decreasing the average entropy generation. It is also observed that the e ect of carbon-black nanoparticles on the atmospheric heat transfer manifests a wide variety of fashions mainly dependent on the presence or absence of thermal radiation due to solar energy.

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“…They found that Richardson number and solid volume fraction affect the fluid flow and heat transfer in the cavity. Moumni et al [14] studied the nanofluid mixed convection in two-sided lid driven cavity including discrete heat Sources by using the finite volume method. The results showed that by increasing Richardson and Reynolds numbers and the solid volume fraction, the heat transfer rate increases.…”

Section: Introductionmentioning

confidence: 99%

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

Boulahia¹,

Wakif²,

Sehaqui³

2016

IJCA

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The present investigation addressed mixed convection heat transfer of nanofluid in a lid driven square cavity with three triangular heating blocks. Finite volume discretization method with SIMPLE algorithm is employed for solving the twodimensional Navier-Stokes and energy balance equations. The method used is validated against previous works. Two cases were considered depending on the position of three triangular heating blocks. Effects of pertinent parameters such as; position of triangular heating blocks, the Richardson number (0.1 ≤ ܴ݅ ≤ 100), the Prandtl number of the pure water ‫ݎܲ(‬ = 6.2) and the volume fraction of nanoparticles (0 ≤ ߮ ≤ 0.05) on the flow and Nusselt number are investigated. The results of this study illustrate that, by reducing Richardson number and increasing the volume fraction of nanoparticles, the average Nusselt number increases. It is also found that there is an optimal position of triangular heating blocks where the heat transfer rate is maximized.

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Accurate finite volume investigation of nanofluid mixed convection in two-sided lid driven cavity including discrete heat sources

Cited by 52 publications

References 37 publications

MHD mixed convection and entropy generation of water–alumina nanofluid flow in a double lid driven cavity with discrete heating

MHD mixed convection and entropy generation of water–alumina nanofluid flow in a double lid driven cavity with discrete heating

Natural convection and entropy generation of ultrafine atmospheric aerosols in the presence of hydrodynamic partial slip and thermal radiation due to solar energy

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

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