MHD Mixed Convection Stagnation-Point Flow Over a Stretching Vertical Plate in Porous Medium Filled with a Nanofluid in the Presence of Thermal Radiation

Yazdi, Mohammad Eftekhari; Moradi, Abed; Dinarvand, Saeed

doi:10.1007/s13369-013-0792-x

Cited by 38 publications

(17 citation statements)

References 24 publications

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“…Also, several researchers have studied the heat transfer performance with the nanofluids in natural and forced convection with metal and metal oxide nanoparticles [20][21][22][23]. Several studies indicate that nanofluids with metallic nanoparticles have better heat transfer performance than metal oxide nanofluids [22,23]. Silver is a common and safe material, and it is considered as a suitable material in heat transfer applications with its high thermal conductivity of the order of 429 W/m-K at room temperature [14].…”

Section: Introductionmentioning

confidence: 99%

Stability of Aqueous Nanofluids Containing PVP-Coated Silver Nanoparticles

Iyahraja¹,

Rajadurai²

2015

Arab J Sci Eng

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Nanofluids have opened a new arena for researchers in the field of heat transfer with their exceptional heat transfer characteristics. Enhanced thermal conductivity and improved stability are the principal advantages of nanofluids for its applications in heat transfer. This paper presents an experimental investigation on the stability of silver-water nanofluids prepared by dispersing 0.1 % volume fraction of polyvinylpyrrolidone-coated silver nanoparticles in distilled water with and without the addition of surfactants. The surfactants used in the present study are polyvinylpyrrolidone and sodium dodecyl sulfate. The stability of the nanofluids was estimated from sedimentation time, pH value, zeta potential and particle size distribution. Thermal conductivity of the nanofluids was measured by thermal property analyzer. It has been found that the stability of nanofluids is influenced predominantly by the size of the particle and the surfactant characteristics. The stability of nanofluid increases with the decrease in the size of nanoparticles. Also, the stability increases with sodium dodecyl sulfate as surfactant as against polyvinylpyrrolidone. However, enhancement in the thermal conductivity is found to be higher with polyvinylpyrrolidone than with sodium dodecyl sulfate.

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Section: Introductionmentioning

confidence: 99%

Stability of Aqueous Nanofluids Containing PVP-Coated Silver Nanoparticles

Iyahraja¹,

Rajadurai²

2015

Arab J Sci Eng

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“…The problem of mixed convection boundary layer flow of nanofluid under the influence of a magnetic field has attracted the interest of many researchers in view of its applications in geophysics and astrophysics. Yazdi et al [28] studied the two-dimensional mixed convection magnetohydrodynamic stagnation-point boundary layer flow over a stretching vertical plate in porous medium filled with nanofluid in the presence of thermal radiation. Ishak et al Table-1) in the base fluid (water) have been studied here.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Hydromagnetic convective–radiative boundary layer flow of nanofluids induced by a non-linear vertical stretching/shrinking sheet with viscous–Ohmic dissipation

Pal

Mandal

2015

Powder Technology

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“…However, flow of MHD was disregarded in their studies. Nevertheless, the study of mixed convection flow of nanofluids under the influence of magnetic field was indeed investigated by Yazdi et al [32], Haroun et al [33], Mustafa et al [34], as well as Mahanthesh et al [35], to name a few.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Magnetohydrodynamic Mixed Convection Flow of Nanofluids over a Nonlinearly Permeable Stretching/Shrinking Sheet with Velocity and Thermal Slip

Jamaludin

Pop

2018

Applied Sciences

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In this paper, the steady three-dimensional magnetohydrodynamic (MHD) mixed convection flow of nanofluids over a permeable vertical stretching/shrinking sheet with slip conditions is investigated in a numerical manner. As such, two types of nanofluids, Cu-water and Ag-water, had been considered. A similarity transformation was employed to reduce the governing equations to ordinary differential equations, which were then solved numerically using the MATLAB (Matlab R2015a, MathWorks, Natick, MA, USA, 1984) programme bvp4c. The numerical solutions derived from the ordinary differential equations subjected to the associated boundary conditions, were obtained to represent the values of the mixed convection parameter. Dual (upper and lower branch) solutions were discovered in the opposing flow region of the mixed convection parameter. A stability analysis was carried out to prove that the upper branch solution was indeed stable, while the lower branch solution was unstable. The significant effects of the governing parameters on the reduced skin friction coefficients, the reduced local Nusselt number, as well as the velocity and temperature profiles, were presented graphically and discussed in detail.

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MHD Mixed Convection Stagnation-Point Flow Over a Stretching Vertical Plate in Porous Medium Filled with a Nanofluid in the Presence of Thermal Radiation

Cited by 38 publications

References 24 publications

Stability of Aqueous Nanofluids Containing PVP-Coated Silver Nanoparticles

Stability of Aqueous Nanofluids Containing PVP-Coated Silver Nanoparticles

Hydromagnetic convective–radiative boundary layer flow of nanofluids induced by a non-linear vertical stretching/shrinking sheet with viscous–Ohmic dissipation

Three-Dimensional Magnetohydrodynamic Mixed Convection Flow of Nanofluids over a Nonlinearly Permeable Stretching/Shrinking Sheet with Velocity and Thermal Slip

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