Aria User Manual Logo
Version 5.20
  • 1. Aria Overview
  • 2. Releases & Deprecations
  • 3. Theory
  • 4. Simulation Setup
  • 5. Tutorials & Examples
  • 6. Running & Troubleshooting
  • 7. Command References
    • 7.1. Adaptivity Settings
    • 7.2. Diagnostic Control
    • 7.3. Finite Element Model Parameters
    • 7.4. IO Region
    • 7.5. Linear Solvers
    • 7.6. Material Properties
    • 7.7. Rebalance Settings
    • 7.8. Solution Control
    • 7.9. Transfer
    • 7.10. User Functions
    • 7.11. User Fields
    • 7.12. User Variables
    • 7.13. Boundary Conditions
    • 7.14. Equation Specification
    • 7.15. Initial Conditions
    • 7.16. Sources
      • 7.16.1. Equations
        • 7.16.1.1. Ampere
        • 7.16.1.2. Bar Momentum
        • 7.16.1.3. Body Acceleration
        • 7.16.1.4. Brinkman Momentum
        • 7.16.1.5. Co2 Mass Balance
        • 7.16.1.6. Continuity
        • 7.16.1.7. Current
        • 7.16.1.8. Cvfem Continuity
        • 7.16.1.9. Cvfem Energy
        • 7.16.1.10. Cvfem Level Set
        • 7.16.1.11. Cvfem Mass Fraction
        • 7.16.1.12. Cvfem Mesh
        • 7.16.1.13. Cvfem Mixture Fraction
        • 7.16.1.14. Cvfem Momentum
        • 7.16.1.15. Cvfem Specific Dissipation Rate
        • 7.16.1.16. Cvfem Turbulence Dissipation Rate
        • 7.16.1.17. Cvfem Turbulent Kinetic Energy
        • 7.16.1.18. Cvfem Velocity Pressure Projection
        • 7.16.1.19. Darcy Momentum
        • 7.16.1.20. Energy
        • 7.16.1.21. Enthalpy
        • 7.16.1.22. Extension Speed
        • 7.16.1.23. Level Set
        • 7.16.1.24. Lubrication
        • 7.16.1.25. Magnetic Flux
        • 7.16.1.26. Mass Balance
        • 7.16.1.27. Mesh
        • 7.16.1.28. Mesh Body Acceleration
        • 7.16.1.29. Momentum
        • 7.16.1.30. Nacl Mass Balance
        • 7.16.1.31. Neutron
        • 7.16.1.32. Nonwetting Phase Mass Balance
        • 7.16.1.33. Porous Enthalpy
        • 7.16.1.34. Porous Species
        • 7.16.1.35. Potential
        • 7.16.1.36. Precursor Conservation
        • 7.16.1.37. Projected Nu Hat Density
        • 7.16.1.38. Projected Sdr
        • 7.16.1.39. Projected Tke
        • 7.16.1.40. Solid
        • 7.16.1.41. Solid Body Acceleration
        • 7.16.1.42. Sp
        • 7.16.1.43. Species
        • 7.16.1.44. Species Mass
        • 7.16.1.45. Specific Dissipation Rate
        • 7.16.1.46. Suspension
        • 7.16.1.47. Turbulence Dissipation Rate
        • 7.16.1.48. Turbulent Kinetic Energy
        • 7.16.1.49. Voltage
        • 7.16.1.50. Water Mass Balance
        • 7.16.1.51. Wetting Phase Mass Balance
      • 7.16.2. Legacy Sources
    • 7.17. Advective Bar
    • 7.18. Bulk Nodes
    • 7.19. CDFEM Options
    • 7.20. CHEMEQ
    • 7.21. Contact
    • 7.22. Directed Energy
    • 7.23. Element Death
    • 7.24. Enclosure Radiation
    • 7.25. Ray Trace Source
    • 7.26. General Chemistry
    • 7.27. Heat Transfer Correlation Coefficient
    • 7.28. Level Set
    • 7.29. Local Coordinate Systems
    • 7.30. Mpmd Coupling
    • 7.31. Nonlinear Solve Settings
    • 7.32. Skinning
    • 7.33. Segregated Solve Settings
    • 7.34. Output
    • 7.35. Postprocessing
    • 7.36. Pressurization Model
    • 7.37. Restart
    • 7.38. Solution Options
    • 7.39. Toggle
    • 7.40. Submodel
  • 8. Bibliography
  • 9. Symbols
Aria User Manual
  • 7. Command References
  • 7.16. Sources
  • 7.16.1.31. Neutron

7.16.1.31. Neutron

  • 7.16.1.31.1. Absorption
  • 7.16.1.31.2. Constant
  • 7.16.1.31.3. Exponential
  • 7.16.1.31.4. Fission
  • 7.16.1.31.5. Global
  • 7.16.1.31.6. Lumped_Constant
  • 7.16.1.31.7. Lumped_Exponential
  • 7.16.1.31.8. Lumped_Global
  • 7.16.1.31.9. Lumped_Nd_Table
  • 7.16.1.31.10. Lumped_Polynomial
  • 7.16.1.31.11. Lumped_Scalar_String_Function
  • 7.16.1.31.12. Lumped_User_Field
  • 7.16.1.31.13. Lumped_User_Function
  • 7.16.1.31.14. Nd_Table
  • 7.16.1.31.15. Polynomial
  • 7.16.1.31.16. Precursor_Reaction
  • 7.16.1.31.17. Scalar_String_Function
  • 7.16.1.31.18. User_Field
  • 7.16.1.31.19. User_Function
  • 7.16.1.31.20. User_Plugin
Previous Next

Provide feedback on this page.

U.S. Department of Energy National Nuclear Security Administration

Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE‑NA‑0003525.

© Copyright 2024, National Technology and Engineering Solutions of Sandia, LLC. Sandia Report SAND2024-07993O.

Built with Sphinx using a theme provided by Read the Docs.