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Wyszukujesz frazę "two-temperature" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Two-temperature theory for a heated semi-infinite solid by a pulsed laser radiation
Autorzy:
Zenkour, Ashraf M.
Abouelregal, Ahmed E.
Powiązania:
https://bibliotekanauki.pl/articles/240137.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermoelasticity
two-temperature
non-Gaussian laser pulse
laser intensity
phase lags
Opis:
In this paper, the two-temperature thermoelasticity model is proposed to a specific problem of a thermoelastic semi-infinite solid. The bounding plane surface of the semi-infinite solid is considered to be under a non-Gaussian laser pulse. Generalized thermoelasticity analysis with dual-phase-lags is taken into account to solve the present problem. Laplace transform and its inversion techniques are applied and an analytical solution as well as its numerical outputs of the field variables are obtained. The coupled theory and other generalized theory with one relaxation time may be derived as special cases. Comparison examples have been made to show the effect of dual-phase-lags, temperature discrepancy, laser-pulse and laser intensity parameters on all felids. An additional comparison is also made with the theory of thermoelasticity at a single temperature.
Źródło:
Archives of Thermodynamics; 2020, 41, 2; 85-101
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of diffusion and internal heat source on a two-temperature thermoelastic medium with three-phase-lag model
Autorzy:
Othman, M. I.
Said, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/240881.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
diffusion
Green-Naghdi theory
internal heat source
three-phase-lag model
two-temperature
dyfuzja
teoria Greena-Naghdiego
źródło ciepła
Opis:
The purpose of this paper is to depict the effect of diffusion and internal heat source on a two-temperature magneto-thermoelastic medium. The effect of magnetic field on two-temperature thermoelastic medium within the three-phase-lag model and Green-Naghdi theory without energy dissipation i discussed. The analytical method used to obtain the formula of the physical quantities is the normal mode analysis. Numerical results for the field quantities given in the physical domain are illustrated on the graphs. Comparisons are made with results of the two models with and without diffusion as well as the internal heat source and in the absence and presence of a magnetic field.
Źródło:
Archives of Thermodynamics; 2018, 39, 2; 15-39
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of pulsed laser radiation on a thermoviscoelastic semi-infinite solid under two-temperature theory
Autorzy:
Othman, M. I.
Abouelregal, A. E. E.
Powiązania:
https://bibliotekanauki.pl/articles/240353.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
generalized thermo-visco-elasticity
two-temperature
Non-Gaussian laser pulse
laser intensity
phase lags
Kelvin-Voigt model
termolepkosprężystość
dwustopniowy
niegaussowski impuls laserowy
intensywność lasera
model Kelvina-Voigta
Opis:
The purpose of this paper is to study the thermoviscoelastic interactions in a homogeneous, isotropic semi-infinite solid under two-temperature theory with heat source. The Kelvin-Voigt model of linear viscoelasticity which describes the viscoelastic nature of the material is used. The bounding plane surface of the medium is subjected to a non-Gaussian laser pulse. The generalized thermoelasticity theory with dual phase lags model is used to solve this problem. Laplace transform technique is used to obtain the general solution for a suitable set of boundary conditions. Some comparisons have been shown in figures to estimate the effects of the phase lags, viscosity, temperature discrepancy, laser-pulse and the laser intensity parameters on all the studied fields. A comparison was also made with the results obtained in the case of one temperature thermoelasticity theory.
Źródło:
Archives of Thermodynamics; 2017, 38, 3; 77-99
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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