I challenge you to slightly converge the end of a hose pipe and NOT experience an increase in pressure
And if the hose pipe was square, open at both ends, and two sides where missing and only the top surface is moving and the fluid in it is completely static - what is going to happen again? That's a new one!
It is compressed between the boat hull and the sea surface.
Another doozy - compressibility at less than .3 Mach!
My money is with the physicist and the Boeing dude -
