- Author
- Ashurst, W. T. | Barr, P. K.
- Title
- Stochastic Calculation of Laminar Wrinkled Flame Propagation Via Vortex Dynamics.
- Coporate
- Sandia National Labs., Livermore, CA
- Report
- WSS/CI 83-29
- Book or Conf
- Combustion Institute/Western States Section. Spring Meeting, 1983. April 11-12, 1983, Pasadena, CA, 55 p., 1983
- Keywords
- flame propagation
- Abstract
- This paper explores the interaction between time dependent turbulent flow structure and an irreversible one-step decomposition reaction. A Lagrangian-calculated velocity field is combined with Eulerian scalar transport to describe premixed flame propagation in two dimensions. The time dependent flow structure is calculated by the discrete vortex dynamics method. The flow field is two-dimensional and is confined to a unit square through the use of either periodic or nonequilibrium boundary condtions. The velocity field from the known vortex locations is used to describe the convection of a reacting scalar on a fixed Eulerian mesh. By variation of the numerical vortex parameters, the flow field length scale and root-mean-square (RMS) velocity can be changed.