Probability-density function model of turbulent hydrogen flames

Hydrogen combustion attracted much attention recently because of the need f or clean alternative energy. For the theoretical/numerical study of hydroge n combustion, there is a need for modeling capabilities for turbulent hydro gen flames. The present work examines the applicability of probability dens ity function (pdf) turbulence models. For the purpose of accurate predictio n of turbulent combustion, an algorithm that combines a conventional CFD fl ow solver with the Monte Carlo simulation of the pdf evolution equation, ha s been developed. The algorithm is validated using experimental data for a heated turbulent plane jet. A study of H-2-F-2 diffusion flames has been ca rried out using this algorithm. Numerical results show that the pdf method is capable of correctly simulating turbulence effects in hydrogen combustio n. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.