AN INDUCTION PARAMETER MODEL FOR SHOCK-INDUCED HYDROGEN COMBUSTION SIMULATIONS

An induction parameter model has been constructed for the simulation o f shock-induced combustion that incorporates the repro-modeling approa ch for the description of the energy release phase. The model applies only explicit, algebraic functions for the description of the chemical kinetics. These functions parameterize a set of data calculated from homogeneous combustion simulations using a complete and detailed react ion mechanism. Based on this method a model has been created for the s imulation of shock-induced combustion of hydrogen in an argon atmosphe re. The parameterized model approximates the results of the full chemi stry very closely, but the algebraic functions can be computed in a fr action of the time of the full chemistry solution. We use the paramete rized model in one- and two-dimensional reactive flow simulations. The results simulate experimental results well, including transitions to detonations and the propagation of detonation waves. (C) 1998 by The C ombustion Institute.