Sierra Low Mach Module: Nalu - Theory ManualΒΆ
The SIERRA Low Mach Module: Nalu (henceforth referred to as Nalu), developed at Sandia National Labs, represents a generalized unstructured, massively parallel, variable density turbulent flow capability designed for energy applications. This code base began as an effort to prototype Sierra Toolkit, [EWS+10], usage along with direct parallel matrix assembly to the Trilinos, [HBH+03], Epetra and Tpetra data structure. However, the simulation tool has evolved as a tool to support a variety of research projects germane to the energy sector including wind aerodynamic prediction and traditional gas-phase combustion applications.
- 1. Low Mach Number Derivation
- 2. Supported Equation Set
- 2.1. Conservation of Mass
- 2.2. Conservation of Momentum
- 2.3. Earth Coriolis Force
- 2.4. ABL Forcing Source Terms
- 2.5. Filtered Mixture Fraction
- 2.6. Conservation of Energy
- 2.7. Review of Prandtl, Schmidt and Unity Lewis Number
- 2.8. Thermal Heat Conduction
- 2.9. Conservation of Species
- 2.10. Subgrid-Scale Kinetic Energy One-Equation LES Model
- 2.11. Shear Stress Transport (SST) RANS Model Suite
- 2.12. Direct Eddy Simulation (DES) Formulation
- 2.13. Solid Stress
- 2.14. Moving Mesh
- 2.15. Radiative Transport Equation
- 3. Discretization Approach
- 4. Advection Stabilization
- 5. Pressure Stabilization
- 6. RTE Stabilization
- 7. Nonlinear Stabilization Operator (NSO)
- 8. Turbulence Modeling
- 9. Supported Boundary Conditions
- 9.1. Inflow Boundary Condition
- 9.2. Wall Boundary Conditions
- 9.3. Atmospheric Boundary Layer Surface Conditions
- 9.4. Moeng Wall Function
- 9.5. Turbulent Kinetic Energy, \(k_{sgs}\) LES model
- 9.6. Open Boundary Condition
- 9.7. Symmetry Boundary Condition
- 9.8. Periodic Boundary Condition
- 9.9. Non-conformal Boundary Condition
- 10. Overset
- 11. Property Evaluations
- 12. Coupling Approach
- 13. Time discretization
- 14. Multi-Physics
- 15. Actuator Wind Turbine Aerodynamics Modeling
- 16. Topological Support
- 17. Adaptivity
- 18. Code Abstractions
- 19. References