Quote:
Originally Posted by ChazInMT
Flow looks attached on the New Beetle (don't know a darn thing about the Old Beetle).
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I am just trying to learn not criticize one way or another but I get no sense of speed from this picture. It is my understanding from reading in this forum that speed matters. This picture stops action so well there is almost no bluring of the background or the wheels.
My understanding is that at slow speeds there is less compression of the air in front, air moving around the vehicle will be moving slower, the air will remain attached easier, the air will be able to close behind the vehicle easier .. so less resistance and less drag.
Higher speed would mean higher compression of air in front, faster air flow around the vehicle, and air will be unable to combine behind the vehicle fast enough so detaches with drag behind car.
And my question is this: Is the ideal aero template different for different speeds? If so how do you determine the ideal template for a vehicle that will NEVER see 65mph but will normally be driven at 45mph tops?
Don