Influence of Natural Convection on the Heat Explosion in Porous Media

2017 ◽  
Keyword(s):  
Porous Media ◽  
Natural Convection

LOCAL MULTIGRID REFINEMENT METHOD FOR NATURAL CONVECTION IN FISSURED POROUS MEDIA

1995 ◽  
Vol 28 (4) ◽  
pp. 455-467 ◽  
Author(s):  
Véronique Debéda ◽  
Jean-Paul Catiagirone ◽  
Pierre Watremez
Keyword(s):  
Porous Media ◽  
Natural Convection ◽  
Refinement Method

scholarly journals A Meshfree Method for Heat Explosion Problems with Natural Convection in Inclined Porous Media

2018 ◽  
Vol 241 ◽  
pp. 01019 ◽  
Author(s):  
Abdoulhafar Halassi ◽  
Youssef Joundy ◽  
Loubna Salhi ◽  
Ahmed Taik
Keyword(s):  
Porous Media ◽  
Natural Convection ◽  
Vertical Direction ◽  
Meshfree Method ◽  
Boussinesq Approximation ◽  
Complex Behaviour ◽  
Meshless Collocation ◽  
Darcy Equations ◽  
Small Inclination ◽  
Good Agreement

This paper investigates the interaction between natural convection and heat explosion in porous media. A meshless collocation method based on multiquadric radial basis functions has been applied to study the problem in an inclined two-dimensional porous media. The governing equations consist of coupling the Darcy equations in the Boussinesq approximation of low density variations to the heat equation with a nonlinear chemical source term. The numerical results obtained are in good agreement with some previous studies that consider the vertical direction. A complex behaviour of solutions is observed, including periodic and aperiodic oscillations. We have shown that a small inclination of the container stabilizes the reactive fluid and can prevent thermal explosion.

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