Quote:
Originally Posted by bnmorgan
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An expanding cone would signify supersonic, shockwave drag/ ballistic airflow which would not be present even marginally on an automobile below 250-mph.
In the sub-sonic automotive flow, the sphere would begin with a maximum separation- induced wake of laminar boundary layer, then as critical Reynolds number is achieved, transition to its minimum wake of turbulent boundary layer.
In order for the car to hide behind the wake of the sphere, the sphere would necessarily have to have a larger frontal area than the car.