Sierra Low Mach Module: Nalu - Verification Manual

The SIERRA Low Mach Module: Nalu (henceforth referred to as Nalu, developed at Sandia, 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. Introduction
• 2. 2D Unsteady Uniform Property: Convecting Decaying Taylor Vortex
  • 2.1. Temporal Order Of Accuracy Results
• 3. Higher Order 2D Steady Uniform Property: Taylor Vortex
  • 3.1. Source Term Quadrature
  • 3.2. Projected nodal gradients
  • 3.3. Momentum and Pressure
• 4. 3D Steady Non-isothermal with Buoyancy
• 5. 3D Steady Non-uniform with Buoyancy
• 6. 2D Steady Laplace Operator
• 7. 3D Steady Laplace Operator with Nonconformal Interface
• 8. Precursor-based Simulations
  • 8.1. Infrastructure Unit Test
  • 8.2. Application Verification Test; Convecting Taylor Vortex
  • 8.3. Application Verification Test; ABL Precursor/Subsequent
• 9. Boussinesq Verification
  • 9.1. Unit tests
  • 9.2. Stratified MMS
• 10. 3D Hybrid 1x2x10 Duct: Specified Pressure Drop
• 11. 3D Hybrid 1x1x1 Cube: Laplace
• 12. Open Boundary Condition With Outflow Thermal Stratification
• 13. Specified Normal Temperature Gradient Boundary Condition
  • 13.1. Simple Linear Temperature Profile: Equal and Opposite Specified Temperature Gradients
  • 13.2. Parabolic Temperature Profile: Equal Specified Temperature Gradients