Streamlines
Posted: 04 Apr 2020, 15:59
Hi everybody,
I wonder which equation is used to compute streamlines of a given vector field F, litterature indicates that a vorticity equation for the streamfunction is mainly used (a laplacian equation) as follow :
The weak formulation is :
It seems that equation globaly works but :
1 - the streamfunction don't have the same range value as StreamSolver module (i know that only differences are important). How is Elmer do the scaling ?
2 - That method give bad results with coarse meshes compare to Elmer module.
Any ideas on how to improve ?
I wonder which equation is used to compute streamlines of a given vector field F, litterature indicates that a vorticity equation for the streamfunction is mainly used (a laplacian equation) as follow :
- vorticity equation.gif (633 Bytes) Viewed 1323 times
- weak formulation.gif (1.67 KiB) Viewed 1323 times
1 - the streamfunction don't have the same range value as StreamSolver module (i know that only differences are important). How is Elmer do the scaling ?
2 - That method give bad results with coarse meshes compare to Elmer module.
Any ideas on how to improve ?
