Abstract
We investigate the possibility of Deflagration-Detonation Transition (DDT) in a Hydrogen-fueling station. Flame propagation in a channel with obstacles is numerically simulated. The two-dimensional compressible Navier-Stokes equations are solved with a Cartesian AMR solver, and the energy release rate for the stoichiometric H_2-air mixture is modeled by a one-step Arrhenuis kinetics. Compuational result shows that a shock is formed ahead of the flame wrinkled by the interaction with obstalces, and that DDT is caused by the shock when it collides with an obstacle. Computations for different channel heights shows that channel height affects the propagation of a detonation wave and the distance to DDT.
