Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
2007-05-18
Nonlinear Sciences
Pattern Formation and Solitons
pages 32, figures 23
Scientific paper
10.1080/13647830701716948
In this paper the travelling wave solutions in the adiabatic model with two-step chain branching reaction mechanism are investigated both numerically and analytically in the limit of equal diffusivity of reactant, radicals and heat. The properties of these solutions and their stability are investigated in detail. The behaviour of combustion waves are demonstrated to have similarities with the properties of nonadiabatic one-step combustion waves in that there is a residual amount of fuel left behind the travelling waves and the solutions can exhibit extinction. The difference between the nonadiabatic one-step and adiabatic two-step models is found in the behaviour of the combustion waves near the extinction condition. It is shown that the flame velocity drops down to zero and a standing combustion wave is formed as the extinction condition is reached. Prospects of further work are also discussed.
Gubernov V. V.
Mercer G. N.
Sidhu H. S.
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