Accession Number : AD0727827
Title : Particle Nonequilibrium Effects in Mixing and Combustion of Ducted, Particle-Laden Flows.
Descriptive Note : Technical rept.,
Corporate Author : BRIGHAM YOUNG UNIV PROVO UTAH DEPT OF CHEMICAL ENGINEERING
Personal Author(s) : Smoot,L. Douglas ; Anderson,Gregory S.
Report Date : 01 JUL 1971
Pagination or Media Count : 33
Abstract : Development of a model has been previously reported for describing combustion of a particle-laden stream which is mixing with a subsonic secondary stream in a duct. This paper presents an extension of this model to include particle non-equilibrium effects. Particle drag, thermal lag, and particle ignition and combustion effects are considered. A series of parametric calcuations for typical metal-loaded, air-augmented systems, showing effects of particle size, secondary air conditions, and secondary duct pressure on metal combustion efficiency are reported. Influences of low secondary duct pressure are examined. A new turbulent mixing coefficient is used for the computations. (Author)
Descriptors : (*NOZZLE GAS FLOW, *COMBUSTION), (*PARTICLES, NOZZLE GAS FLOW), JET MIXING FLOW, BORON, PARTICLE SIZE, IGNITION, PRESSURE, TURBULENCE, MATHEMATICAL ANALYSIS, SECONDARY FLOW, BURNING RATE
Subject Categories : Combustion and Ignition
Distribution Statement : APPROVED FOR PUBLIC RELEASE