Recent content by Filmcavity

So if the aperture of 10cm diameter is at the front of the van, and the whole interior is the sealed cavity, how much would this affect the drag? Likewise, would a larger aperture opening into the whole interior of the van create more drag, and if so, by how much and is this proportional, in any...

If the aperture is a "ram scoop" that sticks up from the hood, then this would increase drag. In my original posting, I am suggesting that the margins of the aperture to the sealed container lie flush with the surrounding body panels so this wouldn't materially alter the front profile of the van.

Therealam, I share your intutitive view, but I would also like to know that it is actually correct. When I think about this problem, I reach the conclusion that when the pressure inside the sealed container is equal to the ram pressure at the front of the vehicle, as it will be when the...

If a moving vehicle (van) had a 10cm diameter aperture in the bodywork at the front, which forms the mouth of a sealed container within the vehicle, would the drag experienced by the vehicle increase in proportion to the size of the sealed container? In other words, would it matter if the sealed...