Reynard 02S Aerodynamics Development

Text and images copyright Michael J. Fuller

Reynard 02S CFD image
Reynard 02S CFD image
Reynard 02S 40% scale wind tunnel modelThe 40% scale wind tunnel mode, here in the car's final form.
Reynard 02S wind tunnel testing in Shrivenham wind tunnel, Brackely UK.02S testing in the Shrivenham wind tunnel.  Initial wind tunnel testing began in early March of 2001, finishing in December, and concluding approximately 45 days of wind tunnel development.

The 02S wind tunnel model borrowed heavily from the 2KQ/01Q model program, as can be seen from this image of the 02S wind tunnel model in a very early iteration (the 5th tunnel test here, late May, early June 2001).  At this point the rear bodywork, tail, and rear wing are clear 2KQ/01Q carry overs.  Here a Lola B01/60-esque rear "Coke bottle" duct, ahead of the rear wheel, is being tested.  

By test 5, L/D was hovering around 3.8 to 4.0:1.
Reynard 02S wind tunnel testing in Shrivenham wind tunnel, Brackely UK.Here we see the 02S in a much-closer-to-final form.  By the 02's final form, L/D would approach, and exceed (at certain configurations and ride heights), 5:1.
Reynard 02S wind tunnel testing in Shrivenham wind tunnel, Brackely UK.In near final form, downforce was in the region of 5600 lbs, for  1155 lbs of drag and 42% balance at 200 mph, in a high downforce configuration. Low drag setup would see drag drop considerable, to around 810 lbs, for 3680 lbs of downforce.

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ęCopyright 2016, Michael J. Fuller