Results 21 to 30 of about 68,479 (303)

Numerical Investigation of Fluid Flow and Heat Transfer in High-Temperature Wavy Microchannels with Different Shaped Fins Cooled by Liquid Metal

open access: yesMicromachines, 2023
The microchannel heat sink has been recognized as an excellent solution in high-density heat flux devices for its high efficiency in heat removal with limited spaces; however, the most effective structure of microchannels for heat dissipation is still ...
Tingfang Yu   +5 more
doaj   +1 more source

Parametric optimization of a stamped longitudinal vortex generator inside a circular tube of a solar water heater at low Reynolds numbers

open access: yesSN Applied Sciences, 2021
Solar Water Heater (SWH) has low efficiency and the performance of this type of device needs to be improved to provide useful and ecological sources of energy. The passive techniques of augmentation heat transfer are an effective strategy to increase the
Felipe A. S. Silva   +4 more
doaj   +1 more source

Heat Transfer Augmentation: Experimental Study with Nanobubbles Technology

open access: yesAdvances in Materials Science and Engineering, 2022
The experimental research on heat transfer characteristics is an ever-ending scheme since the life of all thermoelectronic devices relies on the effective management of thermal energy. In some cases, the gradient of temperature for heat transfer is to be
Prudhvi Krishna Amburi   +2 more
doaj   +1 more source

MHD thin film flow of the Oldroyd-B fluid together with bioconvection and activation energy

open access: yesCase Studies in Thermal Engineering, 2021
The recent study concentrates on the liquid film flow considering Oldroyd-B fluid past a rotating disc in three-dimensional space. The flow pattern has been modeled under the effects of heat absorption/omission and radiation terminologies. The activation
Farhan Ahmad   +6 more
doaj   +1 more source

Charge injection enhanced natural convection heat transfer in horizontal concentric annuli filled with a dielectric liquid [PDF]

open access: yes, 2016
The natural convection heat transfer in a highly insulating liquid contained between two horizontal concentric cylinders is shown by two-dimensional numerical simulations to be noticeably enhanced by imposing a direct current electric field.
Pérez Izquierdo, Alberto Tomás   +4 more
core   +2 more sources

Numerical Solution of the Flow of Air Inside a Circular Duct Encountering Series of Vertically Hanging Heated Circular Baffled Discs Provided at Different Angles [PDF]

open access: yesMATEC Web of Conferences
Efficient vortex generators are the key for heat transfer augmentation. In the present work, a novel approach of generating vortex in the proximity of the heat transfer surface is examined using CFD analysis.
Jayesh Bamaniya, Mayur Kevat, Amit Patel
doaj   +1 more source

Tubing for augmented heat transfer [PDF]

open access: yes, 1983
The objectives of the program reported were: to determine the heat transfer and friction characteristics on the outside of spiral fluted tubing in single phase flow of water, and to assess the relative cost of a heat exchanger constructed with spiral fluted tubing with one using conventional smooth tubing.
Yampolsky, J. S., Pavlics, P.
openaire   +2 more sources

Melt compounding with graphene to develop functional, high-performance elastomers [PDF]

open access: yes, 2013
Rather than using graphene oxide, which is limited by a high defect concentration and cost due to oxidation and reduction, we adopted cost-effective, 3.56 nm thick graphene platelets (GnPs) of high structural integrity to melt compound with an elastomer ...
Araby, Sherif   +8 more
core   +2 more sources

Annular impinging jet with recirculation zone expanded by acoustic excitation [PDF]

open access: yes, 2004
Flow visualization and mass transfer (naphthalene sublimation) experiments were performed on acoustically excited annular air jet with diameter ratio Di/Do=0.95.
Tesar, V., Trávnícek, Z.
core   +1 more source

The effect of nanoparticle shape on hydrothermal performance and entropy generation of boehmit alumina nanofluid in a cylindrical heat sink with helical minichannels [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2022
In the present paper, heat transfer, fluid flow characteristics and entropy generation of boehmite alumina nanofluid flowing through a cylindrical helical minichannels heat sink are examined numerically.
Alireza Falahat, Reza Bahoosh
doaj   +1 more source

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