- #1
zappattack
- 2
- 0
Hello all,
I know this is probably very simple stuff, but I'm a mature student, and a bit rusty.
Essentially, I need to calculate the following: a sailboat of mass 52 tonnes, dimensions 50m x 6m x 2m, and square shaped sail of 150 m^2 is sailing by wind alone, which has a speed of 15 m s-1.
How do I calculate the max speed the boat can travel under sail? Do I assume the hull to be 1/2 the area of a circle and use stokes law for drag in liquids? How do I convert wind speed to force in forward motion for drag to go against? How does the drag alter if moving against current?
The last couple of questions is prob unnecessary, as I need this to be v simple illustration of time it might take to get from a to b via steady wind power...
Thanks!
I know this is probably very simple stuff, but I'm a mature student, and a bit rusty.
Essentially, I need to calculate the following: a sailboat of mass 52 tonnes, dimensions 50m x 6m x 2m, and square shaped sail of 150 m^2 is sailing by wind alone, which has a speed of 15 m s-1.
How do I calculate the max speed the boat can travel under sail? Do I assume the hull to be 1/2 the area of a circle and use stokes law for drag in liquids? How do I convert wind speed to force in forward motion for drag to go against? How does the drag alter if moving against current?
The last couple of questions is prob unnecessary, as I need this to be v simple illustration of time it might take to get from a to b via steady wind power...
Thanks!