Introducing boundary conditions for turbomachinery modeling

This article describes how to define boundary conditions to simulate the complex physics in turbomachinery.

Details

This article includes:

  • Boundary conditions summary
  • Modeling the 1D duct network:
    • Two modeling approaches
    • Convection coupling of duct’s nodes and elements to the rotating wall
    • Convection coupling of ducts inside a 3D solid body
    • Constraining duct temperatures on nodes or elements
  • Modeling thermal contacts
  • Specific convective boundary conditions for turbomachinery:
    • Thermal streams, including modeling total temperature effects on wall due to rotating flow and connecting thermal streams
    • Thermal voids
    • Thermal convecting zones
  • Protective layers
  • Radiation
  • Structural boundary conditions