[Paraview] Oilflow - Surface flow

[David E DeMarle]

On Thu, Mar 29, 2012 at 9:58 AM, Richard GRENON <richard.grenon at onera.fr> wrote:
> Hi Lorenzo.
>
> The Stream Tracer works very well to follow a 3D streamline in a  volume,
> but I always got bad results to follow streamlines on a curved surface. When
> you start from a point on a surface to follow a streamline, the next point
> is found with a small step in the direction of the tangent vector, but this
> new point is not on the surface if the surface is curved. So the new point
> should be projected onto the surface before proceeding to the next step.

I think the surface vectors and surface flows filters are meant to
address this problem.

>
> Lorenzo a écrit :
>
>> Hi all;
>> I managed to calculate the wall shear stress in openFoam using the command
>>  wallShearStress -latestTime
>> and using the results (vector) as in input for the LIC!
>>
>> That's great!
>>
>> Now I'd have another question related to this topic:
>> as I see the LIC is pretty heavy in paraview even though mine is a small
>> geometry. I'm wondering, once I've loaded the wall shear stress, I could use
>> the stream tracer on it to get more or less what I want. The only problem
>> I'm having is that the line that generates the streamlines needs to be
>> exactly on the surface of my body. Is there any way to attach the line to
>> the surface?
>>
>> Thank you again!
>>
>>
>
> --
> 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
>
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