The argument is simple. Conventional versus induction cooling on a car. I need an equation to help me express the 2 different configurations below. Simple drawing representing the front of a car with a conventional scoop (fig 1.) and one with an induction scoop (fig 2.) http://img509.imageshack.us/img509/1578/physhelpsc5.jpg I considered treating it as a pressure differential between two spaces trying to equalize through an opening (the scoop) but it didn't seem to accurately reflect the situation. Any ideas? Its a gentleman's bet and neither of us can seem to express the problem adequately.