Thank you anybody once again. I'm very pleased to see you can get so many tips here and that there are so many people from the industry.
>From what I've seen so far the LIC seems the best way. I tried do uncheck the >"Use LIC when using LOD" option as per Richard suggestion but it doesn't seem >to have sorted any effect… actually, it doesn't seem to work at all on a mac >and it also caused paraview to crash… About the stream tracer with custom source, I tried that but the result is quite ugly (even though you can see some flow characteristics). I think for now I'll stick to the LIC. Thank you all again! Lorenzo Il giorno 29/mar/2012, alle ore 16:48, Adriano Gagliardi ha scritto: > > Best way I've found so far for oilflows is to: > > (1) Select surface and run mask points (random, say 100 points) > (2) Use the stream tracer with custom source (being the mask points filter) > > That should give some good answers. ParaView does need a form of > snap-to-surface spline to overcome the issue Lorenzo had. > > =================================== > > Adriano Gagliardi MEng PhD > Business Sector Leader > Computational Aerodynamics > Aircraft Research Association Ltd. > Manton Lane > Bedford > > Tel: 01234 32 4644 > E-mail: [email protected] > Url: www.ara.co.uk > -----Original Message----- > From: [email protected] [mailto:[email protected]] > On Behalf Of David E DeMarle > Sent: 29 March 2012 15:13 > To: Richard GRENON > Cc: [email protected] > Subject: Re: [Paraview] Oilflow - Surface flow > > On Thu, Mar 29, 2012 at 9:58 AM, Richard GRENON <[email protected]> > 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:[email protected] >> http://www.onera.fr >> >> _______________________________________________ >> Powered by www.kitware.com >> >> Visit other Kitware open-source projects at >> http://www.kitware.com/opensource/opensource.html >> >> Please keep messages on-topic and check the ParaView Wiki at: >> http://paraview.org/Wiki/ParaView >> >> Follow this link to subscribe/unsubscribe: >> http://www.paraview.org/mailman/listinfo/paraview > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview > > > ********************************************************************** > This email contains information that is private and confidential and is > intended only for the addressee. > If you are not the intended recipient please delete it and notify us > immediately by e-mailing the sender. > Note: All email sent to or from this address may be accessed by someone other > than the recipient, for > system management and security reasons. > Aircraft Research Association Ltd. Registered in England, Registration No > 503668 Registered Office: > Manton Lane, Bedford MK41 7PF England VAT No GB 196351245 > > ********************************************************************** > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
