Microgravity experiments on flame spread of an n-decanedroplet array in a high-pressure environment

The flame spread phenomena of an n-decane droplet array in the supercritical pressure range were experimentally investigated in microgravity. Experiments were conducted at presure up to 5.0 MPa, which is over the critical pressure of n-decane. Observations of the flame-spread phenomenon were conducted using OH-radical emission, Schlieren, and back-klit images recorded by a high-speed video camera. The flame-spread rates were calculated on the...