Non-Fourier Heat-Flux Law for Diatomic Gases

2000 ◽  
Vol 14 (2) ◽  
pp. 281-283 ◽  
Author(s):  
Abdulmuhsen H. Ali
Keyword(s):  
Heat Flux ◽  
Heat Flux Law

The conserved Penrose–Fife system with Fourier heat flux law

2003 ◽  
Vol 53 (7-8) ◽  
pp. 1089-1100 ◽  
Author(s):  
Elisabetta Rocca ◽  
Giulio Schimperna
Keyword(s):  
Heat Flux ◽  
Heat Flux Law

Bénard convection and the Cattaneo law of heat conduction

1984 ◽  
Vol 96 (1-2) ◽  
pp. 175-178 ◽  
Author(s):  
B. Straughan ◽  
F. Franchi
Keyword(s):  
Heat Flux ◽  
Heat Conduction ◽  
Onset Of Convection ◽  
Bénard Convection ◽  
Benard Convection ◽  
Heat Flux Law ◽  
Rayleigh Numbers ◽  
Cattaneo Heat Flux

SynopsisCritical Rayleigh numbers are obtained for the onset of convection when the Maxwell–Cattaneo heat flux law is employed. It is found that convection is possible in both heated above and below cases.

scholarly journals Flux-limiting effects in a quasisteady plasma corona with nonclassic heat flux

1992 ◽  
Vol 10 (4) ◽  
pp. 645-649
Author(s):  
J. Ramirez
Keyword(s):  
Heat Flux ◽  
Transition Regime ◽  
Plasma Corona ◽  
Heat Flux Law ◽  
Flux Limiting ◽  
Calculated Flux

The quasisteady expansion of a plasma ablated from a laser-irradiated pellet with classic (Spitzer) heat flux is reconsidered with a nonclassic heat flux law. The nonphysical flux factor (calculated flux vs. free streaming), going to infinity as one goes away from the pellet in the above transition regime, is corrected.

Rayleigh-Benard Convection With Second-Sound in a Viscoelastic Fluid-Filled High-Porosity Medium

2003 ◽  
Author(s):  
P. G. Siddheshwar ◽  
C. V. Srikrishna
Keyword(s):  
Heat Flux ◽  
Viscoelastic Fluid ◽  
Critical Rayleigh Number ◽  
Momentum Equation ◽  
Heat Propagation ◽  
High Porosity ◽  
Eigen Value ◽  
Heat Flux Law ◽  
Rayleigh Benard Convection ◽  
Rayleigh Benard

The linear stability of the Rayleigh-Benard situation in a viscoelastic fluid occupying a high-porosity medium is investigated. The viscoelastic correction to Brinkman momentum equation is effected by considering the modified form of Jeffrey constitutive equation. Further, the non-classical Maxwell-Cattaneo heat flux has been used in place of the classical Fourier heat flux law. The results of the study reveal that the non-classical theory predicts finite speeds of heat propagation. The eigen value is obtained for free-free, isothermal boundary combinations and it has been observed that the critical Rayleigh number is less than the corresponding value of the problem governed by the classical Fourier law. The study finds application in progressive solidification of polymeric melts and solutions, and also in the manufacture of composite materials.

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