DETAILED CHEMISTRY MODELING OF LAMINAR DIFFUSION FLAMES ON PARALLEL COMPUTERS

We present a numerical simulation of an axisymmetric, laminar diffusion flame with finite-rate chemistry on serial and distributed-memory parallel computers. We use the total mass, momentum, energy, and species conservation equations with the compressible Navier-Stokes equations written in vorticity-velocity form. The computational algorithm for solving the resulting nonlinear coupled elliptic partial differential equations involves damped Newton iterations, Krylov-type linear-system solvers, and adaptive mesh refinement. The results presented here are the first in which a lifted diffusion flame structure is obtained on a nonstaggered grid. The numerical solution is in very good agreement with previous numerical and experimental data.