A133 高圧下変動速度場における液滴燃焼速度定数増大のメカニズムについて(燃焼科学と技術の新展開III)
詳細
The mechanism of burning rate enhancement for a single droplet flame in varying forced convection at high pressure previously found in our microgravity experiments was numerically investigated. The excellent agreement on the unsteady behavior of droplet combustion between experimental results and numerical ones were obtained. It was shown that a toroidal vortex formed downstream of the droplet at high pressure pushes back the flame in the wake region and heats the droplet, and thus enlarges evaporation rate of the droplet, as well as in the stagnation region upstream of the droplet.
