For example, a person doing a mid belly flop has a drag coefficient of around 1, while a Ram 1500 pickup truck has a Cd of 0.36. So, it’s less about the size than the shape of the object moving ...

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At the time, the lowest-drag production car for sale in the US was the Porsche Taycan, which cuts through the air with a drag coefficient (Cd) of 0.22. But the rather excellent electric Porsche ...

More information: Haonan Xiang et al, Machine learning and numerical investigation on drag coefficient of arbitrary polygonal particles, International Journal of Mechanical System Dynamics (2024).