Numerical Modeling of Pool Fires Using LES and Finite Volume Method for Radiation.
Numerical Modeling of Pool Fires Using LES and Finite
Volume Method for Radiation.
(726 K)
Hostikka, S.; McGrattan, K. B.; Hamins, A.
Fire Safety Science. Proceedings. Seventh (7th)
International Symposium. International Association for
Fire Safety Science (IAFSS). June 16-21, 2003,
Worcester, MA, Intl. Assoc. for Fire Safety Science,
Boston, MA, Evans, D. D., Editor(s), 383-394 pp, 2003.
Keywords:
fire research; compartment fires; pool fires; burning
rate; combustion models; thermal radiation; equations;
pyrolysis; liquid fuels; computational fluid dynamics
Abstract:
The thermal environment in small and moderate-scale pool
flames is studied by Large Eddy Simulation and the
Finite Volume Method for radiative transport. The
spectral dependence of the local absorption coefficient
is represented using a simple wide band model. The
predicted radiative heat fluxes from methane/natural gas
flames as well as methane pool burning rates and flame
temperatures are compared with measurements. The model
can qualitatively predict the pool size dependence of
the burning rate, but the accuracy of the radiation
predictions is strongly affected by even small errors in
prediction of the gas phase temeprature.
