# Biconvex Airfoil in incompressible flow

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 February 27, 2011, 11:54 Biconvex Airfoil in incompressible flow #1 New Member   Join Date: Jan 2011 Posts: 6 Rep Power: 7 Hi all, having this biconvex (quadrilateral) airfoil Leading Edge: A(0,0) Trailing Edge B(1,0) C(.7,.03) D(.45,-.05) I'm interested to graph streamlines at M=0, inviscid; in particular I'd like to know stagnation streamline direction at LE and TE. What do I have to do? Have you got any mesh already done or a simple application or even a jpeg showing streamlines over a generic biconvex airfoil? Then, how can I determine polars? I have fluent and Openfoam. I'm quite new to CFD so any help is really appreciated. Thanks a lot.

February 27, 2011, 15:29
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Are you looking for something like this or more sophisticated?
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 streamlines.gif (3.5 KB, 18 views)

February 27, 2011, 15:41
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Quote:
 Originally Posted by truffaldino Are you looking for something like this or more sophisticated?

Ciao truffaldino, innanzi tutto ti ringrazio della risposta, comunque mi interessa veramente la base, cioč vedere come le linee di corrente vanno sul profilo al variare della freccia e dell'angolo d'attacco.

I'm interested mainly to see how streamlines are directed varying the camber and/or the angle of attack.

Only secondarily I'd like to calculate polars at M=0.

 February 27, 2011, 16:34 #4 Senior Member     Join Date: Jan 2011 Posts: 247 Blog Entries: 5 Rep Power: 9 Ciao Courant, I have a very simple code in "scilab" that uses 2D hess-smith panel method to calculate incompressible potential flow and streamlines past airfoils. It is extremely easy to use. Scilab is a free analog of mathlab that can be downloaded from the web. Ti posso inviare il programma, se vuoi. Truffaldino

February 27, 2011, 16:52
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Quote:
 Originally Posted by truffaldino Ciao Courant, I have a very simple code in "scilab" that uses 2D hess-smith panel method to calculate incompressible potential flow and streamlines past airfoils. It is extremely easy to use. Scilab is a free analog of mathlab that can be downloaded from the web. Ti posso inviare il programma, se vuoi. Truffaldino
Sent my e-mail address via PM.
Thanks.

February 27, 2011, 17:45
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 Originally Posted by Courant Sent my e-mail address via PM. Thanks.
Ti ho inviato tutti i files.

Truffaldino

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