10-06-2008, 08:42 PM
But don't they vent in both directions? [shocked]
You know what though? I'll bet it has to do with water velocity and flow. Similar to how air blow guns have holes on the sides of the nozzles so that the air out the end actually comes out FASTER than without. Venturi/Bernoulli or something like that...
Also, the vents are generally at the root of the blade which doesn't do much work anyway...
Still looking for a good article on the hydrodynamic design principles of fins.
_SHig
[signature]
You know what though? I'll bet it has to do with water velocity and flow. Similar to how air blow guns have holes on the sides of the nozzles so that the air out the end actually comes out FASTER than without. Venturi/Bernoulli or something like that...
Also, the vents are generally at the root of the blade which doesn't do much work anyway...
Still looking for a good article on the hydrodynamic design principles of fins.
_SHig
[signature]