Results 21 to 30 of about 1,698,755 (284)

Emergence of Non-Fourier Hierarchies

open access: yesEntropy, 2018
The non-Fourier heat conduction phenomenon on room temperature is analyzed from various aspects. The first one shows its experimental side, in what form it occurs, and how we treated it.
Tamás Fülöp   +7 more
doaj   +1 more source

Close to Fourier heat conduction equation for solids: Motivation and symbolic-numerical analysis

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2008
Heat conduction close-to-Fourier means, that we look for a minimal extension of heat conduction theory using the usual Fourier expression of the heat flux density and modifying that of the internal energy as minimal as possible by choosing the minimal ...
Gu, Hong, Herrmann, Heiko
doaj   +1 more source

Multi layer heat conduction analysis using SPH method

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Smoothed particle hydrodynamics (SPH) is a particle method for analyzing physical problems. But this method has numerical problems when treating multilayer problems and free surface. In this report we propose equations to treat multilayer heat conduction
Naohiro MATSUMOTO   +3 more
doaj   +1 more source

Investigation of moving trapezoidal and exponential fins with multiple nonlinearities

open access: yesAin Shams Engineering Journal, 2023
In this article, we study moving longitudinal and exponential fins with variable thermal conductivity, thermal emissivity, and heat transfer coefficient. The problem is solved numerically using shooting technique.
Zia Ud Din   +3 more
doaj   +1 more source

Local Fractional Homotopy Perturbation Method for Solving Non-Homogeneous Heat Conduction Equations in Fractal Domains

open access: yesEntropy, 2015
In this article, the local fractional Homotopy perturbation method is utilized to solve the non-homogeneous heat conduction equations. The operator is considered in the sense of the local fractional differential operator.
Yu Zhang, Carlo Cattani, Xiao-Jun Yang
doaj   +1 more source

Heat Conduction of Air in Nano Spacing

open access: yesNanoscale Research Letters, 2009
The scale effect of heat conduction of air in nano spacing (NS) is very important for nanodevices to improve their life and efficiency. By constructing a special technique, the changes of heat conduction of air were studied by means of measuring the heat
Zhang Yao-Zhong   +4 more
doaj   +1 more source

Investigation of transient conduction–radiation heat transfer in a square cavity using combination of LBM and FVM [PDF]

open access: yes, 2018
In this paper, the effect of surface radiation in a square cavity containing an absorbing, emitting and scattering medium with four heated boundaries is investigated, numerically.
Keshtkar, Mohammad Mehdi   +3 more
core   +1 more source

Interaction time and beam diameter effects on the conduction mode limit [PDF]

open access: yes, 2012
Laser welding has two distinctive modes: keyhole and conduction mode. Keyhole mode is characterized by deep penetration and high welding speeds, while conduction mode has higher quality welds with no defects or spatter.
Assunção, Eurico   +2 more
core   +1 more source

An experimental investigation of structured roughness on heat transfer during single-phase liquid flow at microscale [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Lin, TY   +2 more
core   +6 more sources

Evolution and application of heat transfer theory in supernormal hot working processes:from Fourier heat conduction model to non-Fourier heat conduction model

open access: yesCailiao gongcheng
This paper focuses on the theoretical innovation from Fourier heat conduction to non-Fourier heat conduction and its key application in the field of extreme heat transfer.
ZHAO Ming   +5 more
doaj   +1 more source

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