Fluid "twitching" when simulating non-convex airfoils

weymouth / lily-pad

Real-time two-dimensional fluid dynamics simulations in Processing. Initiated by Dr G D Weymouth:

https://github.com/weymouth/

MIT License

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Fluid "twitching" when simulating non-convex airfoils #21

Closed jwethan closed 1 year ago

jwethan commented 1 year ago

I'm working on testing new airfoil shapes in the program and I've noticed irregularities in the fluid when the shape has non-convex sections. Sort of like a weird twitching at the tip that I've noticed only forms when the shape has a concave section.

Does Lily Pad have the capability to simulate non-convex shapes accurately? If not why is the solver limited in that aspect and is there any way to accommodate concave shapes?

Any insight is appreciated.

weymouth commented 1 year ago

Lily-Pad isn't under development any longer. If you are interested in a more advanced and faster version of the software, check out WaterLily