TURBULENT COMBUSTION OF SPRAYS UNDER SUPERCRITICAL CONDITIONS

摘要

Experimental results on a gaseous hydrogen / liquid oxygen spray flame are compared with a simplified model. The gasification rate, which depends on rates of turbulent mixing and vaporization, has a strong effect on flame structure. The rate-limiting process is vaporization at subcritical pressures and turbulent mixing at supercritical pressures. This is because surface tension and the latent heat of vaporization tend to zero above the critical pressure.