Results 71 to 80 of about 119 (91)
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International Communications in Heat and Mass Transfer, 2021
Abstract Local thermal non-equilibrium effects on heat natural convection features in a horizontal confocal elliptical annulus with the inner cylinder covered with a nanofluid-saturated porous sleeve is investigated in this study. The steady and laminar natural convective flow is incited by the thermal buoyancy resulting from the differential heating
Tahar Tayebi, Ali J. Chamkha
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Abstract Local thermal non-equilibrium effects on heat natural convection features in a horizontal confocal elliptical annulus with the inner cylinder covered with a nanofluid-saturated porous sleeve is investigated in this study. The steady and laminar natural convective flow is incited by the thermal buoyancy resulting from the differential heating
Tahar Tayebi, Ali J. Chamkha
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Materials Today: Proceedings, 2020
Abstract Linear thermal instability of a horizontal nanofluid layer considering thermally non-equilibrium effect by applying magnetic field is investigated. Analysis is done with more practical boundary conditions on volume fraction of nanoparticles i.e. zero nanoparticle flux is considered across free-free boundaries.
Jyoti Ahuja
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Abstract Linear thermal instability of a horizontal nanofluid layer considering thermally non-equilibrium effect by applying magnetic field is investigated. Analysis is done with more practical boundary conditions on volume fraction of nanoparticles i.e. zero nanoparticle flux is considered across free-free boundaries.
Jyoti Ahuja
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International Journal of Heat and Fluid Flow, 2019
Abstract Foam metals with micro pores own excellent thermal performance, however, poor heat conductive ability of most heat-transfer fluids restricts further heat transfer improvement. Combination of foam metal and nanofluid with highly conductive nanoparticles is a promising solution.
Huijin Xu, Zhanbin Xing, Kambiz Vafai
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Abstract Foam metals with micro pores own excellent thermal performance, however, poor heat conductive ability of most heat-transfer fluids restricts further heat transfer improvement. Combination of foam metal and nanofluid with highly conductive nanoparticles is a promising solution.
Huijin Xu, Zhanbin Xing, Kambiz Vafai
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Physics of Fluids
The interplay between variations in permeability and viscosity on the onset of local thermal non-equilibrium in Darcy–Bénard convection has been investigated. Specifically, permeability is modeled as decreasing linearly with depth, while viscosity decreases exponentially. The validity of the principle of exchange of stabilities is confirmed.
N. Latha +3 more
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The interplay between variations in permeability and viscosity on the onset of local thermal non-equilibrium in Darcy–Bénard convection has been investigated. Specifically, permeability is modeled as decreasing linearly with depth, while viscosity decreases exponentially. The validity of the principle of exchange of stabilities is confirmed.
N. Latha +3 more
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Local thermal non-equilibrium (LTNE) effects revealed through porous media heat transport experiment
Precise prediction of heat transport in porous media holds crucial significance in Earth Sciences for diverse applications, ranging from the design of geothermal systems to utilizing heat as a tracer in aquifers. Traditionally, the description of heat transport has been simplified by assuming local thermal equilibrium (LTE), where the temperature ...Haegyeong Lee +5 more
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Applied Mechanics and Materials
In this work, we examine the effects of viscous dissipation and local thermal non-equilibrium (LTNE) on Couette flow in a duct filled with a porous media under the influence of an angled magnetic field. The bottom plate of the duct is in motion and subjected to a constant heat flux, while the top plate remains stationary and adiabatic.
Nitish Gupta, D. Bhargavi
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In this work, we examine the effects of viscous dissipation and local thermal non-equilibrium (LTNE) on Couette flow in a duct filled with a porous media under the influence of an angled magnetic field. The bottom plate of the duct is in motion and subjected to a constant heat flux, while the top plate remains stationary and adiabatic.
Nitish Gupta, D. Bhargavi
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Modeling heat transport in porous media is a key focus in engineering and earth sciences, with applications ranging from using heat as a tracer to determine hydrogeological properties to modeling decay heat from nuclear waste repository in aquifers, and simulating geothermal systems. Most models assume local thermal equilibrium (LTE), where multi-phase
Haegyeong Lee +3 more
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Haegyeong Lee +3 more
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Effects of thermal properties of porous media on local thermal (non-)equilibrium heat transport
Journal of Groundwater Hydrology, 2023Shoichiro Hamamoto, Gabriel C Rau
exaly