Interesting...the prior reading I've done on this topic was focused on preventing the fuel, once it began falling out from the air stream from actually settling down on the port walls. Idea here being that those vortices would 'shake' the droplets back up into the airstream before they ever got a chance to come in contact with the port wall.

Ultimately the goal there was to keep the fuel in suspension and therefore make more of it available for efficient burn in the chamber, thus producing more power.