2 (genoa and main) sails problem – no pressure coeficients visible on first sail

Questions, suggestions, feature requests, bug reports, feedbackCategory: Questions2 (genoa and main) sails problem – no pressure coeficients visible on first sail
Boris TomicBoris Tomic asked 3 years ago

I tried to do a test with 2 sails (main and genoa) but pressure coefficients are not shown on genoa.
Likely I am doing something wrong but I can not figure out what.

André Deperroistechwinder Staff replied 3 years ago

The most likely explanation is that there is no mesh for the genoa. If the mesh is of the “free” type, it needs to be regenerated manually each time each time the sail is modified.
André

Boris TomicBoris Tomic replied 3 years ago

Both sails are modeled as NURBS type (ruled). And a similar thing happened with STL imported sails.

Boris TomicBoris Tomic replied 3 years ago

Uh, I was not precise with my question, pressure coefficients are shown but they are 0 on the whole sail.

André Deperroistechwinder Staff replied 3 years ago

I can’t reproduce the bug. I’ll send you a private message so that you can send me the project file if possible.
André

1 Answers
André Deperroistechwinder Staff answered 3 years ago

It’s a display bug which occurs in the case of sailboat tri-linear analyses. I will release a fixed version in a couple of weeks. 
In the meantime, the fix is to use the tri-uniform method which is the recommended method anyway because of its robustness and speed.
André