ORIGINAL: BaldEagel

I guarantee you know more about fluid dynamics than you think, air is a fluid and I will take a wager that you know about laminar flow and boundary layers.

I use a ''Mr Funnel'' fuel filter funnel to transfer my Kero into my fueling station and am always amazed at how much water and crud it stops from going into the system.

I will do some experiements on a restricted fuel line and see what happens.

Mike