Towards Direct Simulations of Counterflow Flames with Consistent Numerical Differential-Algebraic Boundary Conditions
Abstract
A new approach for the formulation of boundary conditions for the counterflow configuration is presented. Upon discretization of the steady-state Navier-Stokes equations at the inflow boundaries, numerically algebraic equations are imposed as boundary conditions, while upon discretization of the unsteady Navier-Stokes equations at the outflow, differential boundaries result. It is demonstrated for symmetric potential flow that the resulting numerical differential-algebraic boundary conditions are suitable to account for the multi-directional character of the flow at the boundaries of the counterflow configuration.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 18, 2015
- Accession Number
- ADA626078
Entities
People
- Josette Bellan
- Panayotis D. Kourdis
Organizations
- California Institute of Technology