Combustion in Turbulent Jets and Buoyant Flames. Final Report, January 1, 1990-December 31, 1992

摘要

Results from an investigation of the mixing mechanisms in liquid-phase and gas-phase jets are reported. The investigation addressed the effects of molecular diffusion rates (Schmidt number) and combustion heat release on these mechanisms and incorporated these mechanisms into modeling and predictive techniques for practical natural gas flames. The gas-phase, chemically reacting jet experiments in the High Pressure Combustion Facility investigated the effects of Reynolds number on turbulent jet diffusion flame length, free of buoyancy and radiation effects. In a collaborative modeling effort with the SANDIA CRF at Livermore, CA, the authors have made progress in incorporating the effects of radiation and buoyancy in their description of turbulent jet diffusion flames and make comparisons between their model results and some recent NOx measurements.