Microgravity laminar diffusion flame in a perpendicular fuel and oxidizer stream configuration

Fuel is. injected through a porous flat plate perpendicular to a stream of oxidizer flowing parallel to. the surface. of the burner for regimes corresponding to a fire scenario in spacecrafts. Particle image velocimetry is used to characterize the flow-structure in nonreactive conditions. The influence of fuel injection on the flow structure is evaluated, and a detailed description of the flow structure is presented. For combustion experiments a minimum fuel injection velocity is shown to be necessary for a stable flame. The influence of thermal expansion on the. flame is evaluated. A complementary numerical study is used to support the preceding experimental observations.