Detailed Chemistry Modeling of Laminar Diffusion Flames
                            on Parallel Computers


                               Craig C. Douglas

                            IBM Research Division,
                      Thomas J. Watson Research Center,
                                P. O. Box 218,
                     Yorktown Heights, NY 10598-0218, USA
                                     and
                       Department of Computer Science,
                               Yale University,
                              P. O. Box 208285,
                        New Haven, CT 06520-8285, USA.

                                Alexandre Ern

                    Department of Mechanical Engineering,
                               Yale University,
                              P. O. Box 208286,
                        New Haven, CT 06520-8286, USA
                                     and
                      CERMICS, ENPC, La Courtine, 93167,
                            Noisy-le-Grand Cedex,
                                   FRANCE.

                              Mitchell D. Smooke

                    Department of Mechanical Engineering,
                               Yale University,
                              P. O. Box 208286,
                        New Haven, CT 06520-8286, USA.


                                   ABSTRACT

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.

Key words:  combustion, finite rate chemistry, vorticity-velocity, nonlinear
methods, iterative methods, parallel computers.

AMSMOS Classification:  80A32, 80-08, 65C20, 65N20, 65F10.