AN EXPERIMENTAL-DATA BASE FOR THE COMPUTATIONAL FLUID-DYNAMICS OF REACTING AND NONREACTING METHANOL SPRAYS

The present data set consists of detailed measurements obtained within methanol sprays produced by a research atomizer which is operated wit h three atomizing air modes: none, non-swirling, and swirling. in addi tion, the cases with nonswirling and swirling atomizing air are charac terized under reacting conditions. In each case, state-of-the-art diag nostics are applied. Measurements of the gas phase velocities in both the single and two-phase cases, droplet size distributions, and vapor concentration are obtained. The data are reported in a standardized fo rmat to ensure usefulness as modeling challenges. The results obtained reveal the presence of significant interaction between phases and sig nificant changes in spray structure as a result of altering the atomiz ing air characteristics. Efforts have been directed toward delineation of errors and comparison with existing data sets where possible. The result is a comprehensive data base for vaporizing sprays under reacti ng and nan-reacting conditions which permit a systematic variation in aerodynamic effects to be explored.