BANFF
Coupling 3-D Radiation, Reaction, and CFD
BANFF is intended for modeling three dimensional reacting and non-reacting flow of gases in geometries. Typical systems modeled include gas-fired utility boilers, waste incinerators and flares. A particular emphasis is placed on pollutant formation and destruction.
CAPABILITIES:
- Complex three-dimensional geometries
- Steady state, laminar or turbulent flows with/without relaminarization
- Mixing and reaction of multiple fuels
- Full coupling between turbulent fluid mechanics, radiative and convective heat transfer, and chemical reactions
- Radiative heat transfer for absorbing-emitting, turbulent, sooting media
- NOx/SOx formation and destruction
- Variable thermal boundary conditions including adiabatic, thermal resistance, “heat exchanger”
- Soot
APPLICATIONS:
- Burner and furnace design
- Chemical process heaters
- Reboilers
- Flares
- Waste incineration
- Pollutant formation and destruction
- SNCR
- Radiation in participating media
- Computational fluid dynamics
ALGORITHMS:
- Robust, accurate, iterative solvers to extract the non-linear coupling between turbulent fluid mechanics
- Gas phase reaction chemistry (including NOx)
- Heat transfer (particularly radiation)
- Turbulent fluctuations are accounted for by computing statistical distributions for reaction and radiation properties with several different mixing models (prescribed pdf, eddy dissipation concept)
- Reaction and radiation calculations (discrete-ordinates) can include any number of chemical species