I would try :<br><br>- diminishing the step size (in cell length)<br>- Putting a very high number of steps<br>- Decreasing the termination speed<br><br>Jacques<br><br><div class="gmail_quote">2009/4/9 Richard GRENON <span dir="ltr"><<a href="mailto:richard.grenon@onera.fr">richard.grenon@onera.fr</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello,<br>
<br>
This is an addition to my previous mail about Surface Streamlines:<br>
<br>
After several tests, I can obtain some pieces of surface Streamlines on non planar surfaces (with the Wiki example for Custom Filter as with my own data). I have to use a very low value of "Initial Step Length" of the Custom StreamTracer, but I get always more or less short pieces of streamlines. never a full streamline from the seed point to the border of the surface. So I have to put many seed points all over the surface to cover the surface with pieces of streamlines in order to have an idea of the surface flow.<br>
<br>
What I would like to get is a full streamline extending over the whole surface from a given seed point. As an example, let us consider the fuselage of an aircraft. I would like to put some seed points on a circle around the fuselage at a given location on the aircraft axis. The seed points may be obtained using Mask Point on a Slice of the fuselage by a plane at the desired location on the axis. Then a Surface Vectors filter is applied to the fuselage dataset and the Custom StreamTracer is applied to the Surface Vectors. But all I can obtain is always more or less short (depending of the "Initial Step Length" value) pieces of surface streamlines extending around the seed points.<br>
<br>
Is there a way to have full surface streamlines with the existing filters other than including LC or some other software?<br>
<br>
Thank you in advance for your help.<br>
<br>
-- <br>
Richard GRENON<br>
ONERA<br>
Departement d'Aerodynamique Appliquee - DAAP/ACI<br>
8 rue des Vertugadins<br>
92190 MEUDON - FRANCE<br>
phone : +33 1 46 73 42 17<br>
fax : +33 1 46 73 41 46<br>
mailto:<a href="mailto:Richard.Grenon@onera.fr" target="_blank">Richard.Grenon@onera.fr</a><br>
<a href="http://www.onera.fr" target="_blank">http://www.onera.fr</a><br>
<br>
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