Multi-scale modeling of detonation formation with concentration and temperature gradients in n-heptane/air mixtures

Detonation initiation and ignition wave propagation in concentration stratified n-heptane/air mixtures with and without temperature gradient are numerically modeled by using the correlated adaptive chemistry and transport (CO-DACT) method coupled with the hybrid multi-timescale (HMTS) method in a one-dimensional planar constant volume chamber. For concentration gradient only, three combustion modes, including spontaneous ignition, detonation to...