- Author
- Sivathanu, Y. R. | Gore, J. P.
- Title
- Method for Multiray Radiative Source Term Calculations Including Turbulence Radiation Interactions.
- Coporate
- Purdue Univ., West Lafayette, IN
- Sponsor
- National Science Foundation, Washington, DC National Institute of Standards and Technology, Gaithersburg, MD
- Contract
- NSF-GRANT-CTS-8914520 NIST-GRANT-60NANB8D0834
- Book or Conf
- Combustion Institute/Eastern Section. Chemical and Physical Processes in Combustion. Proceedings. Fall Technical Meeting, 1991. October 14-16, 1991, Ithaca, NY, 94/1-4 p., 1991
- Keywords
- combustion | turbulence | equations
- Identifiers
- radiative source term; radiating flames; radiation interactions; absorbed energy
- Abstract
- Turbulent fluctuations are known to increase the radiative heat flux from luminous nonpremixed flames over the value estimated from average temperature and absorption coefficients. Stochastic simulations of the temperature and species concentration profiles have been used to treat these effects. The simulations involve constructing a time series of the scalar properties for each point within the flame and integrating the equation of transfer over each realization in the time series. Such calculations are expensive since several realizations of scalars are needed to obtain a statistically significant mean. The objective of the present work was to develop a simpler method for calculating the radiative source term for individual points in strongly radiating flames while accounting for the effectsof nonhomogeneous distribution of scalars and of turbulence radiation interactions.