# 4.12. Fire Features

- 4.12.1. MPMD Radiation
  - 4.12.1.1. Input Deck Conversion from Nalu to Sierra/PMR
  - 4.12.1.2. Input Deck Conversion from Syrinx to Sierra/PMR
  - 4.12.1.3. Spectral Radiation Transport
  - 4.12.1.4. Particle Radiation Terms
  - 4.12.1.5. Beam (Directed Flux)
- 4.12.2. EDC Combustion Model
- 4.12.3. Flamelet Combustion Model
  - 4.12.3.1. Equations describing flamelet-based fire scenarios
  - 4.12.3.2. Boundary condition modifications