CFD - Computational Fluid Dynamics



  • Computer simulations of fluid flow
  • Very complex mathematical models
  • Very compute intensive, usually requiring super-computer with parallel architectures
  • Does not replace physical studies in wind tunnels (yet)



CFD Simulation

  • Examples of CFD simulation
    • Streamlines
    • Pressures
    • Viscosity
    • Velocities
    • Flow and flow separations
    • Boundary layers
    • Surface friction
    • Load analysis (lift, drag, and side forces)


  • Example
    • Pressure distribution and streamlines on a Porsche 965


  • Example
    • Viscous-flow simulation of the separated flow over a two dimensional model of the Mazda RX-7


  • Benefits
    • Lower analysis costs
    • Rapid availability of test data
    • Design improvements via CAD models only
    • Elimination of physical models