- Author
- Vedha-Nayagam, M. | Altenkirch, R. A. | Eichhorn, R.
- Title
- Application of Large Grashof Number Asymptotics to the Prediction of the Gas-Phase Flow Field Induced During Downward Flame Spread.
- Coporate
- Kentucky Univ., Lexington
- Report
- WSS/CI 83-03,
- Book or Conf
- Combustion Institute/Western States Section. Spring Meeting, 1983. April 11-12, 1983, Pasadena, CA, 30 p., 1983
- Keywords
- flame spread
- Abstract
- The gas-phase combustion of vertical, pyrolyzing fuel slabs under flame-spread conditions is investigated theoretically. A surface temperature profile resembling an experimentally observed distribution during steady, downward flame spread is prescribed to decouple the gas-phase analysis from solid fuel in the configuration mentioned is presented. The analysis is developed by the method of matched asymptotic expansions for large Grashof number, and numerical calculations, asuming local similarity, were performed. Heat flux to the solid, gas-phase velocity, temperature, coupling functions and flame sheet location are presented. Computed temperatures are compared to experimentally determined ones for spread down thin, cellulosic sheets.