calculation program, fluidynamics
 

anybody know of a free program which can be used to calculate what type of wing would be needed for a hydrofoil (boat)

RE: calculation program, fluidynamics
 

Wing sections in water work a lot different from air wing sections. I'm moving this to the boat forum where you should be able to get a better answer.

RE: calculation program, fluidynamics
 

[&:]

Hydrofoil surface area Formula

You need to estimate the area needed, so get out your calculator. The formula is:


S = L / F U² Cl

S = Surface area in Square feet
L = Lift (this is the total weight of your boat, crew, etc., in Pounds)
/ = "divided by"
F = Factor to adjust for water density, unit measurements, etc. Use the number F = 2.09
U^2 = Velocity in MPH multiplied by itself (squared)
Cl = Coefficient of lift. See the table provided below for Cl. You should cruise at a high L / D or say 2.25degrees.
Take off will be at a higher Cl & lower speed. You must make some assumptions based on experience.


[&:]

[edlt]
oops forgot the table....

RE: calculation program, fluidynamics
 

Umi = Ultimate math instructor.[8D]