Problem with a simple 2D case: flow over an airfoil

samiam1000 · March 24, 2013, 10:54

Dear All,

I am trying to simulate a 2D case: the flow around an airfoil.

Here you can find the case: could you try to solve it? I get some errors, both in the laminar and in the turbulent case. Could anyone help, please?

Thanks a lot,
Samuele

aljazari · March 24, 2013, 17:46

What error are you getting?

samiam1000 · March 25, 2013, 04:13

A flow which is meaningless!

Have you tried it?

aljazari · March 25, 2013, 16:44

Yes I have. I don't like the looks of the boundary conditions you have.

How can you not have an inlet and an outlet? It's all 'farfield'.

The inlet should be the arc and then you can leave the outlet as top, bottom and the backwards panel.

Also, since you're using simpleFoam, there's no need to enter a value for pressure. It's shouldn't make a difference as the flow is incompressible.

aljazari · April 30, 2013, 12:13

1- Don't put spaces in the file name. In fact, never put spaces in file names when using unix/linux, it would save you a lot of hassle.

2- Are you sure that the OpenFOAM executables are loaded in the PATH? i.e. can you run any other commands?

March 24, 2013, 10:54	Problem with a simple 2D case: flow over an airfoil	#1
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 18	Dear All, I am trying to simulate a 2D case: the flow around an airfoil. Here you can find the case: could you try to solve it? I get some errors, both in the laminar and in the turbulent case. Could anyone help, please? Thanks a lot, Samuele

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March 24, 2013, 17:46		#2
aljazari New Member Abdulhaq Join Date: Oct 2012 Posts: 27 Rep Power: 13	What error are you getting?

March 25, 2013, 04:13		#3
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 18	A flow which is meaningless! Have you tried it?

March 25, 2013, 16:44		#4
aljazari New Member Abdulhaq Join Date: Oct 2012 Posts: 27 Rep Power: 13	Yes I have. I don't like the looks of the boundary conditions you have. How can you not have an inlet and an outlet? It's all 'farfield'. The inlet should be the arc and then you can leave the outlet as top, bottom and the backwards panel. Also, since you're using simpleFoam, there's no need to enter a value for pressure. It's shouldn't make a difference as the flow is incompressible.

April 30, 2013, 12:13		#5
aljazari New Member Abdulhaq Join Date: Oct 2012 Posts: 27 Rep Power: 13	1- Don't put spaces in the file name. In fact, never put spaces in file names when using unix/linux, it would save you a lot of hassle. 2- Are you sure that the OpenFOAM executables are loaded in the PATH? i.e. can you run any other commands?