Large-eddy simulation and experimental study on effects of single-dual sparks positions on vented explosions in a channel

Analysis of the inhomogeneous LPG-air flow field in a tube containing mixed obstructions

“…No matter what kind of instability is described, it can reflect the change of pressure and density gradient in the pipeline, resulting in significant changes in flow fields such as flow and combustion. It is also such gradient changes that eventually lead to the emergence of vortex structures of varying intensity in the tube [6] , and the intensity distribution of vortex structures in the tube and the obstruction rate of the obstacle show a positive correlation [7] , and eventually also change the flame structure [8] . At present, on the obstacles, flame, combustible gas combustion rate, and the interrelationship of explosion overpressure, people have conducted a lot of research.…”