This paper reviews the state of knowledge on flame acceleration and deflagration-to-
detonation transition (DDT) in smooth ducts and ducts equipped with turbulence-producing …

Hydrogen as an energy carrier is a very promising alternative fuel in the future. Accidental
hydrogen explosions remain one of the major concerns in hydrogen energy utilization and …

Insects perform feats of strength and endurance that belie their small stature. Insect-scale
robots—although subject to the same scaling laws—demonstrate reduced performance …

Ammonia is regarded as a promising energy carrier due to its zero-carbon emissions and its
suitability for long-distance, large-scale storage, and transportation. Ammonia/hydrogen …

The development and evolution of tulip and distorted tulip flames in closed channels were
simulated by solving the fully compressible reactive Navier–Stokes equations using a high …

Numerical simulations were conducted to study the flame acceleration and deflagration-to-
detonation transition (DDT) in a channel with a bank of aligned obstacles. The …

To estimate the hazard of explosion during hydrogen/methane gas transportation, the
experiments were conducted in a small-scale duct. It studied the effect of hydrogen fraction …

High-speed schlieren photography, pressure records and large eddy simulation (LES)
model are used to study the shape changes, dynamics of premixed flame propagation and …

Air mixed with methane commonly causes explosion accidents. Explosion vents can
discharge the explosion pressure and release energy to reduce the explosion impact …

The paper explains the mechanism of tulip flame formation in horizontal combustion
chambers closed at the ignition end. The explanations are based essentially on the PIV …