Results 61 to 70 of about 49,718 (278)

Non-Oberbeck-Boussinesq effects in two-dimensional Rayleigh-Benard convection in glycerol [PDF]

open access: yes, 2007
We numerically analyze Non-Oberbeck-Boussinesq (NOB) effects in two-dimensional Rayleigh-Benard flow in glycerol, which shows a dramatic change in the viscosity with temperature.
Boussinesq J.   +6 more
core   +6 more sources

Buoyancy‐Driven Micropolar Fluid Flow Transport in Porous Media With Variable Heat Source and Convective Heating

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The objective of the current research is to characterize the thermal performance in micropolar fluid flows on a vertically elongated porous sheet in the presence of buoyancy forces. Thus, the motivation of this study is to improve the understanding of buoyancy‐driven micropolar fluid flows through porous media, which are relevant to advanced ...
T. Venu, MD. Shamshuddin, S. O. Salawu
wiley   +1 more source

3D Simulative Investigation of Heat Transfer Enhancement Using Three Vortex Generator Types Surrounding Tube in Plate Fin Heat Exchanger [PDF]

open access: yesE3S Web of Conferences, 2019
Vortex generator is a method to enhancing of heat exchanger performance but still have some disadvantages when the heat transfer performance increase. One of the disadvantage using vortex generator is high pressure drop.
Mardikus Stefan   +4 more
doaj   +1 more source

Large-Biot-number non-isothermal flow of a thin film on a stationary or rotating cylinder [PDF]

open access: yes, 2009
Using the lubrication approximation we investigate two-dimensional steady flow of a thin film of fluid with temperature-dependent viscosity on a uniformly heated or cooled horizontal cylinder, which may be stationary or rotating about its axis, in the ...
Duffy, B.R., Wilson, S.K.
core   +1 more source

Impact of Darcy–Forchheimer Inertial Drag and Heat Dissipation on Micropolar Hybrid Nanofluid Flow via Expanding Surface

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The hybrid nanofluid integrated with micropolar fluid shows growing interest due to the enhanced thermal performance in microscale devices. These improved properties are due to their greater thermal conductivity and rotational effects. The proposed study assesses the significance of velocity slip on the flow characteristic of micropolar ...
P. P. Nayak   +3 more
wiley   +1 more source

Hydro-thermal performance of fabric air duct (FAD): Experimental and CFD simulation assessments

open access: yesCase Studies in Thermal Engineering, 2023
Nowadays, fabric air duct (FAD) systems are the most cost-effective, and aesthetically appealing way to evenly distribute heated or cooled air to large open interior spaces.
Mohamed Hekal   +3 more
doaj   +1 more source

Simulation of copper-water nanofluid in a microchannel in slip flow regime using the lattice Boltzmann method with heat flux boundary condition [PDF]

open access: yes, 2015
Laminar forced convection heat transfer of water–Cu nanofluids in a microchannel is studied using the double population Thermal Lattice Boltzmann method (TLBM). The entering flow is at a lower temperature compared to the microchannel walls.
D'Orazio, Annunziata   +2 more
core   +1 more source

Relationship between Nusselt and Rayleigh Numbers in Natural Convection

open access: yesThe Eurasia Proceedings of Science Technology Engineering and Mathematics, 2023
When studying heat transfer in laminar or turbulent flow, the aim is to maximize heat transfer, using for example corrugated channels; nanofluids or hybrid nanofluids, etc.; to determine the factors that influence the thermal and hydraulic performance of the used equipment and to determine the relationships that may exist between heat transfer ...
LANANI, Ahsene, BENCHABI, Rahima
openaire   +2 more sources

Arrhenius Activation Energy on Viscous and Radiative Heating of Hybridized Chemical Reactive Magnetized‐Casson Nanofluid Flow in Saturated Porous Media With Varied Heat Source/Sink

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study analyzes the influence of Arrhenius activation energy on the chemically reactive, magnetohydrodynamic Casson hybrid nanofluid flow past an exponentially stretching surface embedded in a Darcy–Forchheimer porous medium with a non‐uniform heat source/sink.
Md. Sailanebaba   +2 more
wiley   +1 more source

Numerical study of heat transfer and flow structure over a microscale backstep

open access: yesAlexandria Engineering Journal, 2021
This study presents a two and three-dimensional numerical simulations of a flow-through a sudden expansion and contraction microchannels. The finite element method was used to discretize the equations governing the physical model.
Hassnia Hajji   +5 more
doaj   +1 more source

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