| 28th June 2007 05:31 PM | |
| Guest |
Slalom fin I started to race in slalom competition. Since I`m studying technical engineering i have basic knowledge in fluid dynamics and really would like to understand more about how my fins work… can somebody answer the following questions: -What is the matter about Twist and Flex? -What inflouence does the leading edge radius have? -where shoulde the thickest point of the fin be (% of cord length) and how thick in % should it aproximatly be? -at what angle of attack does a slalom fin work? -how much lift does a fin have to produce to counterbalance the forces from the rig? -does the tip vortex fenomen has an inflouence, if yes, what fin tip shape is best to avoid it? -what profiles are the most used in fin design, is it NACA? Why not eppler or special hydrofoil profiles? Thanks! stefan |