ID#: 188
Abstract Title: Mixing-Controlled Exothermic Fields in Explosions
Session Title: Explosion Physics
Session Date: 7/30/01
Session Start Time: 8:55 AM
Contributing Author: Kuhl, A.L.
Organization: Lawrence Livermore National Laboratory
Country: USA
Authors: A. L. Kuhl, R. E. Ferguson
Short Abstract: A theoretical model of combustion in explosions at large Reynolds, Peclet and Damk–hler numbers is described.Ý A key feature of >the model is that combustion is treated as material transformations in the Le Chatelier state plane, rather than heat release.Ý In the limit considered here, combustion is concentrated on thin exothermic sheets (boundaries between fuel and oxidizer).Ý The products seem to expand along the sheet, thereby inducing vorticity that continues to feed the process.Ý The results illustrate the linking between turbulence (vorticity) and exothermicity (dilatation) in the limit of fast chemistry-thereby demonstrating the controlling role that fluid dynamics plays in such problems.