search

weymouth / lily-pad

Real-time two-dimensional fluid dynamics simulations in Processing. Initiated by Dr G D Weymouth:
https://github.com/weymouth/
MIT License
161 stars 78 forks source link

Pressure Force on Ellipse failed #2

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. Modify body in Free Cylinder to Ellipsebody instead of Circlebody
2. Resolution = 16, Ellisebody (0.2*n, 0.5*m, D/2, 2, view)
3. No spring or dashpot in system, pure reaction of body to fluid

What is the expected output? What do you see instead?
Body move and react to fluid forces | Instead, vorticity blows up due to 
exponential propagation of the initial perturbation

Please use labels and text to provide additional information.

Original issue reported on code.google.com by hendrikh...@gmail.com on 4 Feb 2013 at 7:22

GoogleCodeExporter commented 9 years ago 
This is a critical error Hendrik? 

You're asking for help debugging a change you made to working code, right? Why 
don't you ask a polite question in the group pages instead.

Original comment by DrWeymo...@gmail.com on 4 Feb 2013 at 2:25

GoogleCodeExporter commented 9 years ago 
Hi Gabe,

I dont mean to be impolite. Sorry if it sounded offensive. I'll place the 
question in group page. Thanks.

Yes, this is critical as the code will crash in less than 3 simulation time.

Original comment by hendrikh...@gmail.com on 4 Feb 2013 at 4:10