Results 11 to 20 of about 56,783 (308)

Quantitative evaluation of the natural convection effect on thermal conductivity measurement with transient plane source method

open access: yesCase Studies in Thermal Engineering, 2023
When measuring the thermal conductivity of liquids with transient methods, natural convection occurs inevitably and whether it can be ignored is unknown.
Ke-Fan Wu   +4 more
doaj   +1 more source

Bidispersive thermal convection [PDF]

open access: yesInternational Journal of Heat and Mass Transfer, 2017
We obtain the linear instability and nonlinear stability thresholds for a problem of thermal convection in a bidispersive porous medium with a single temperature. It is important to note that we show that the linear instability threshold is the same as the nonlinear stability one. This means that the linear theory is capturing completely the physics of
GENTILE, MAURIZIO, Straughan, B.
openaire   +4 more sources

Effect of thermal convection on columnar-toequiaxed transition during solidifi cation of Al-Cu alloy [PDF]

open access: yesChina Foundry, 2018
To investigate the effect of three-dimension (3D) thermal convection on columnar-to-equiaxed transition (CET), the CET transition during the solidification of an Al-Cu alloy was simulated by 3D cellular automaton model coupled with the fi nite element ...
Xian-fei Zhang, Zhi-jun Feng, Yu-fei Li
doaj   +1 more source

Tridispersive thermal convection [PDF]

open access: yesNonlinear Analysis: Real World Applications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
M. Gentile, B. Straughan
openaire   +3 more sources

Numerical analysis of the potential for mixed thermal convection in the Buda Thermal Karst, Hungary

open access: yesJournal of Hydrology: Regional Studies, 2021
Study region: Buda Thermal Karst system, Hungary. Study focus: The pilot area has high geothermal potential characterized by prominent thermal anomalies, such as thermal springs and spas which tap the Triassic carbonate aquifers.
Márk Szijártó   +3 more
doaj   +1 more source

Ultimate State of Thermal Convection [PDF]

open access: yesPhysical Review Letters, 2003
The ultimate regime of thermal convection, the so-called Kraichnan regime [R. H. Kraichnan, Phys. Fluids 5, 1374 (1962)]], hitherto has been elusive. Here numerical evidence for that regime is presented by performing simulations of the bulk of turbulence only, eliminating the thermal and kinetic boundary layers and replacing them with periodic boundary
Lohse D, Toschi F
openaire   +5 more sources

Insight into the relationship between non-linear mixed convection and thermal radiation: The case of Newtonian fluid flow due to non-linear stretching

open access: yesPropulsion and Power Research, 2023
The current research focuses the light on the characterization of buoyancy-driven non-linear mixed convection and non-linear radiation in a Newtonian flow over a non-linearly stretching vertical sheet, and this type of flow has useful applications in ...
Amit Kumar Pandey   +6 more
doaj   +1 more source

Thermal Analysis and Junction Temperature Estimation under Different Ambient Temperatures Considering Convection Thermal Coupling between Power Devices

open access: yesApplied Sciences, 2023
The convection thermal coupling between adjacent power devices in power converters is dependent on the ambient temperature. When the ambient temperature changes, the convection thermal coupling also changes.
Kaixin Wei   +5 more
doaj   +1 more source

Thermal vibrational convection in near-critical fluids. Part 2. Weakly non-uniform heating [PDF]

open access: yes, 2006
The governing equations and effective boundary conditions to describe thermal vibrational convection in a near-critical fluid are derived with the help of the multiple-scale method and averaging procedure. In contrast to Part 1, this paper focuses on the
Vorobev, Anatoliy   +9 more
core   +1 more source

Suppression of photothermal convection using silicon carbide substrates for optofluidics experiments

open access: yesResults in Engineering, 2020
Photothermal convection on glass substrate has been a major obstacle for optofluidic measurement at elavated optical power. Here we demonstrate a strategy to suppress the photothermal convection by using silicon carbide substrates of high thermal ...
Ya-Tang Yang   +3 more
doaj   +1 more source

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