Volume 78, Number 6, June 2007
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||22 May 2007|
A reduced model for shock and detonation waves. II. The reactive case
CEA/DAM Ile-de-France - BP 12, 91680 Bruyères-le-Châtel, France
2 CERMICS, Ecole Nationale des Ponts et Chaussées (ParisTech) 6 & 8 Av. Pascal, 77455 Champs-sur-Marne, France
Accepted: 30 April 2007
We present a mesoscopic model for reactive shock waves, which extends the model proposed in G. Stoltz, Europhys. Lett., 76 (2006) 849. A complex molecule (or a group of molecules) is replaced by a single mesoparticle, evolving according to some Dissipative Particle Dynamics. Chemical reactions can be handled in a mean way by considering an additional variable per particle describing the progress of the reaction. The evolution of the progress variable is governed by the kinetics of a reversible exothermic reaction. Numerical results give profiles in qualitative agreement with all-atom studies.
PACS: 82.40.Fp – Shock wave initiated reactions, high-pressure chemistry / 05.10.-a – Computational methods in statistical physics and nonlinear dynamics / 05.70.Ln – Nonequilibrium and irreversible thermodynamics
© Europhysics Letters Association, 2007
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