Interesting simulations of underbody flows
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Drag Reduction
One of the most important areas of work is drag reduction. Rieter uses Harpoon to help with this. A production car with two different underfloors (see images above), were compared. A drag reduction of 10% (Cd 0.33 to 0.30) was discovered using Harpoon with a new, flatter underbody concept.
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Harpoon speeds up CFD analysis at Rieter Automotive
Underbody Streamlines for Cd = 0.33 (floor 1)
Underbody Streamlines for Cd = 0.30 (floor 2)
Underbody turbulent kinetic energy for Cd = 0.33 (floor 1)
Underbody turbulent kinetic energy for Cd = 0.30 (floor 2)
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