CFD - Computational Fluid Dynamics

 

CFD

 
  • 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