NSU3D (Navier-Stokes Unstructured 3D)

is a state-of-the-art Reynolds-Averaged Navier Stokes code based on unstructured meshes. The solution algorithms in NSU3D have been in continuous development and validation for more than 20 years, providing accurate, reliable and repeatable results over a wide range of flow regimes. Fully unstructured mesh support with automatic hybridization of tetrahedral meshes greatly reduces meshing overhead while automatic agglomeration multigrid and line implicit solution in the near wall regions provide rapid results on large models.

NSU3D Support Image Gallery

Fixed Wing Aircraft

  • Performance prediction
  • Transonic wing/fuselage shape optization
  • High lift device design
  • Powerplant integration
  • Inputs for Stability and Control Analysis
  • Inputs for Aeroelastic Analysis
  • Fuselage drag reduction

Rotor optimization

  • Rotary Wing Aircraft
  • Wind Power

Turbine blade design

  • Power/torque curve prediction
  • Blade stall analysis
  • Inputs for stress analysis of turbine blades
  • Inputs for stress analysis of support structures


  • Reynolds Averaged Navier Stokes (RANS) analysis using unstructured meshes
  • Inviscid (Euler) analysis using unstructured meshes
  • Inviscid with Interactive Boundary Layer correction(IBL) using unstructured grids
  • Design Optimization capability using adjoint methods
  • Two dimensional multi-element airfoil analysis