PDF simulations of turbulent combustion incorporating detailed chemistry

Recently, the technique of in situ adaptive tabulation (ISAT) was proposed to accomplish efficiently the hitherto formidable task of including detailed chemistry in particle methods for turbulent-reactive Rows. This paper addresses the performance issues (accuracy, efficiency, and storage requirements) involved in the implementation of ISAT in a particle-mesh code to solve for the joint probability density function (JPDF) of velocity-frequency-composition. Detailed error-control analysis for a skeletal methane mechanism is performed using a pairwise mixing stirred reactor (PMSR) Lest. The results of the PMSR tests are used to specify the error tolerance for the JPDF simulation of a piloted non-premixed jet flame. We demonstrate that JPDF simulations of realistic turbulent-reactive Bows with detailed chemistry are now possible within reasonable CPU time and storage requirements. (C) 1999 by The Combustion Institute.