OCR Text |
Show TURBULENT MIXING STUDIES IN A SECONDARY COMBUSTOR MODEL* -*J. P. Foote**, R. J. Schulzt, T. V. Giel, Jr.tt Energy Conversion Programs University of Tennessee Space Institute Tullahoma, Tennessee 37388 ABSTRACT A water flow model of the secondary combustor in the Low Mass Flow MHD test train at the U. S. Department of Energy Coal Fired Flow Facility was tested in order to determine the effects of combustor geometry and combustion air injection techniques on the flow and mixing in the secondary combustor. A dual Bragg cell laser velocimeter was used to obtain detailed two-component velocity data for various model configurations, to examine the effects on mixing efficiency of oxidizer injection velocity, oxidizer injection angle and various flow restrictions. The modeling results provide useful insights for the operation of the Coal Fired Flow Facility secondary combustor. *This work was sponsored by the United States Department of Energy under Contract No. DE-AC02-79ET10815 **Research Engineer, Energy Conversion R&D Programs, Member ASME. tAssociate Professor, Member AIAA, ASME. 1"tAdjunct Professor, Member AIAA, ASME. 1 |