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Old 10-05-2023, 05:22 PM   #17 (permalink)
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To study fluid mechanics and boundary layers most books require a knowledge of differential equations. On my bicycle fairings I start with 5:1 aspect ratio and a Kamm reduction of 10-15% of length. I have done tuft testing and coast down tests under 20 mph. The template is a starting point. When you bring a body of revolution closer to the ground and add four wheels drag increases. That is what Alberto Morelli did to make a low drag body for the Fiat vehicle (131?). Nature never tires of surprising people.

Last edited by Grant-53; 10-06-2023 at 09:24 AM..
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