Results 31 to 40 of about 49,718 (278)
Relationship between Nusselt number and the thermoviscous (Rott) functions [PDF]
The characterization of the thermal properties of regenerator materials has traditionally been studied by measurement of the heat transport of a gas passing through a regenerator flanked by two heat exchangers. The results for heat transfer between the gas and regenerator are typically expressed as a nondimensional Nusselt number.
Liu Jin, Steven L. Garrett
openalex +3 more sources
Analysis of Dual Heat Sources in a Partially Open Enclosure
In this study a partially open enclosure with two heat sources is examined to determine the Nusselt number along the hot wall. The first part of the study examines the effect of the Rayleigh number ratio on the Nusselt number. The largest Rayleigh number
M. McGarry, James G. Kohl
doaj +1 more source
I n this study, the thermal performance of Al2 O3 , TiO2 and ZnO nanofluid in horizontal microchannels was investigated experimentally and numerically.
Beytullah Erdoğan +4 more
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Laminar, steady-state, natural convection of Bingham fluids in trapezoidal enclosures with a heated bottom wall, cooled inclined sidewalls and an adiabatic top wall has been studied based on numerical simulations for a range of values of nominal Bingham ...
S. Malkeson +2 more
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On the effects of internal heat sources upon forced convection in porous channels with asymmetric thick walls [PDF]
Thermal behaviour of a porous channel with thick, solid walls featuring uneven wall thicknesses and asymmetric external thermal boundary conditions is analysed theoretically.
Cunningham, Samia +3 more
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Asymptotic Nusselt numbers for internal flow in the Cassie state
We consider laminar, fully developed, Poiseuille flows of liquid in the Cassie state through diabatic, parallel-plate microchannels symmetrically textured with isoflux ridges. Via matched asymptotic expansions, we develop expressions for (apparent hydrodynamic) slip lengths and Nusselt numbers. Our small parameter ( $\epsilon$
Marc Hodes +3 more
openaire +3 more sources
Nusselt Number and Convection Heat Transfer Coefficient for a Coaxial Heat Exchanger Using Al2O3-Water pH=5 Nanofluid [PDF]
Recently, a new class of fluid made up of metal nano-particles in suspension in a liquid, called nanofluid, appeared. Some numerical studies have shown that these new fluids have a higher heat transfer performance, compared with the conventional liquids.
Răzvan-Silviu Luciu +3 more
doaj
Optimization of Nusselt Number of Al2O3/Water Nanofluid Using Response Surface Methodology [PDF]
This study has primarily aimed at the examination of the effect of flow rate, solid volume fraction and their interactions on the Nusselt number of Al2O3/water nanofluids.
Kazem Motahari, Sara Barati
doaj
Simulation based investigation of Nusselt number and Poiseuille number in helical microchannels
Simulation based work carried out in order to understand the thermohydraulic characteristics of fluid flow in helical microchannel, with circular cross-section, that is subjected to constant heat flux is detailed in this work.
Shamsa Al Ketbi +4 more
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Laminar convective heat transfer of elliptical minichannels is investigated for hydrodynamically fully developed but thermal developing flow with no-slip condition.
Liangbin Su +4 more
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