Numerical study of converging shock waves in porous media

2005 ◽  
Vol 50 (8) ◽  
pp. 976-986 ◽  
Author(s):  
A. A. Charakhchyan ◽  
K. V. Khishchenko ◽  
V. V. Milyavskiy ◽  
V. E. Fortov ◽  
A. A. Frolova ◽  
...  
Keyword(s):  
Porous Media ◽  
Shock Waves ◽  
Numerical Study ◽  
Converging Shock Waves

Converging shock waves in porous media

2004 ◽  
Vol 30 (1) ◽  
pp. 33-35 ◽  
Author(s):  
A. A. Charakhch’yan ◽  
I. V. Lomonosov ◽  
V. V. Milyavskii ◽  
V. E. Fortov ◽  
A. A. Frolova ◽  
...  
Keyword(s):  
Porous Media ◽  
Shock Waves ◽  
Converging Shock Waves

On converging shock waves of spherical and polyhedral form

2002 ◽  
Vol 454 ◽  
pp. 365-386 ◽  
Author(s):  
DONALD W. SCHWENDEMAN
Keyword(s):  
Shock Waves ◽  
Numerical Study ◽  
Stability Result ◽  
Shock Propagation ◽  
Initial Shape ◽  
Regular Polyhedra ◽  
Converging Shock Waves ◽  
Geometrical Shock Dynamics ◽  
The Stability ◽  
Spherical Shock

The behaviour of converging spherical shock waves is considered using Whitham's theory of geometrical shock dynamics. An analysis of converging shocks whose initial shape takes the form of regular polyhedra is presented. The analysis of this problem is motivated by the earlier work on converging cylindrical shocks discussed in Schwendeman & Whitham (1987). In that paper, exact solutions were reported for converging polygonal shocks in which the initial shape re-forms repeatedly as the shock contracts. For the polyhedral case, the analysis is performed both analytically and numerically for an equivalent problem involving shock propagation in a converging channel with triangular cross-section. It is found that a repeating sequence of shock surfaces composed of nearly planar pieces develops, although the initial planar surface does not re-form, and that the increase in strength of the shock at each iterate in the sequence follows the same behaviour as for a converging spherical shock independent of the convergence angle of the channel. In this sense, the shocks are stable and the result is analogous to that found in the two-dimensional case. A numerical study of converging spherical shocks subject to smooth initial perturbations in strength shows a strong tendency to form surfaces composed of nearly planar pieces suggesting that the stability result is fairly general.

NUMERICAL STUDY OF POROUS MEDIA TURBULENT COMBUSTION IN A RECUPERATIVE REACTOR

2016 ◽  
Vol 19 (11) ◽  
pp. 941-953 ◽  
Author(s):  
Pablo Donoso-Garcia ◽  
Luis Henriquez-Vargas
Keyword(s):  
Porous Media ◽  
Turbulent Combustion ◽  
Numerical Study

scholarly journals Experimental generation of spherical converging shock waves

2021 ◽  
Vol 62 (7) ◽  
Author(s):  
Mathieu Brasseur ◽  
Marc Vandenboomgaerde ◽  
Christian Mariani ◽  
Diogo C. Barros ◽  
Denis Souffland ◽  
...  
Keyword(s):  
Shock Waves ◽  
Converging Shock Waves

Experimental and numerical study of catalytic combustion and pore-scale numerical study of mass diffusion in high porosity fibrous porous media

Energy ◽  
2022 ◽  
Vol 238 ◽  
pp. 121831
Author(s):  
Mohammadmehdi Namazi ◽  
Mohammadreza Nayebi ◽  
Amin Isazadeh ◽  
Ali Modarresi ◽  
Iman Ghasemi Marzbali ◽  
...  
Keyword(s):  
Porous Media ◽  
Catalytic Combustion ◽  
Numerical Study ◽  
Mass Diffusion ◽  
High Porosity ◽  
Pore Scale ◽  
Fibrous Porous Media
Sign in / Sign up

Export Citation Format

Share Document