Flame acceleration and deflagration-to-detonation transitions (DDT) in large obstructed channels filled with a stoichiometric methane–air mixture are simulated using a single-step reaction mechanism. The reaction parameters are calibrated using known velocities and length scales of laminar flames and detonations. Calculations of the flame dynamics and DDT in channels with obstacles are compared...

We present a new way of modeling turbulent thermonuclear deflagration fronts in Chandrasekhar-mass white dwarfs, consisting of carbon and oxygen, undergoing a type Ia supernova explosion. Our approach is a front capturing/tracking hybrid scheme, based on a level set method, which treats the front as a mathematical discontinuity and allows for full coupling between the front geometry and the flo...

Volatile oils in forest fuel can significantly affect fire behavior, especially extreme e.g., deflagration, storms, blowups, eruptive fires and crown fires. However, how these influence behavior remains unclear, as few qualitative studies have been performed globally. In the present study, we compared volatile oil contents components live branches surface dead of Pinus yunnanensis Franch, which...