[Paraview] Surface LIC Problem

[Richard Grenon]

Hello

Which vector field are you using with LIC ?

The LIC control panel allows to choose the vector to be used, and you 
MUST choose a vector field that is NOT ZERO on the surface.

With Euler CFD results, the velocity vector is not zero at the wall, and 
you can use this vector.

With Navier-Stokes CFD results, the velocity vector is zero at the wall, 
and you have to use the skin friction vector instead.

Richard
> I'm trying the Surface LIC Plugin.
> My models are formatted as VTK MultiBlock Dataset, and there are geometries
> of fluids and walls.
> I'd like to visualize LIC on the walls.
>
> First I applied Surface LIC to the walls, the results are something wrong.
> Next to the fluids, they are OK.
> But there are extra walls which I don't want to visualize (ex. Inlets/Outlets, external boundaries).
> Maybe the reason of the walls are that they don't have the velocity values of main flows.
>
> I also tried the Resample with Dataset filter for linking main flows to the walls.
> The results are roughly good, but sometimes the resampling qualitys are poor (dropping the values).
>
>
> Is there a good way to visualize the part of the walls' LIC?
> My sources have complicated shapes, so I want to make the best use of the information of blocks of walls.

-- 
  Richard GRENON
  ONERA
  Departement d'Aerodynamique Appliquee - DAAP/ACI
  8 rue des Vertugadins
  92190 MEUDON - FRANCE
  phone : +33 1 46 73 42 17
  fax   : +33 1 46 73 41 46
  mailto:Richard.Grenon at onera.fr
  http://www.onera.fr