- Author
-
Baum, H. R.
|
Rehm, R. G.
- Title
- Transient Combustion in a Turbulent Fire.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Sponsor
- Air Force Office of Scientific Research, Washington, DC
- Report
-
NBSIR 88-3753,
- Distribution
- AVAILABLE FROM National Technical Information Service (NTIS), Technology Administration, U.S. Department of Commerce, Springfield, VA 22161. Telephone: 1-800-553-6847 or 703-605-6000; Fax: 703-605-6900. Website: http://www.ntis.gov
- Contract
- ISSA-87-0018
- Book or Conf
- U.S./Japan Government Cooperative Program on Natural Resources (UJNR). Fire Research and Safety. 9th Joint Panel Meeting of the UJNR Panel. May 4-8, 1987,
Norwood, MA,
50-62 p.,
1987
- Keywords
-
combustion
|
mathematical models
|
diffusion flames
|
vapor phases
- Identifiers
- computational models; mixing a turbulent eddy
- Abstract
- A mathematical model of the local transient diffusion flame generated by a mixing in a turbulent eddy is presented. It is intended ultimately as a computational "molecule" to be imbedded in the authors existing numerical simulation of large scale fire driven flow. The model consists of a three dimensional strain-vortex field which exactly satisfies the constant property Navier Stokes equations, a convenction diffusion equation for the mixture fraction which determines the thermodynamic quantities, and a potential flow determined by the conservation of mass. The properties of the model are explained and its relevance to turbulent combustion are illustrated by sample results.