airfoil stl

[rama]

how can i run my simulation for an airfoil ive tried to make a stl file making a hole of airfoil the geometry is fine but how can iset material numbers for complex shapes like this. The example i referred to is cylinder3d they were defining the material numbers for the cylinder by making a cylinder using origin and extend but how can i define my airfoil surface as solid material.

Thank you for the help.

[Adrian]

If the STL is waterthight you can just just the STLreader indicator to set the material numbers. This is exactly what is done in the laminar/cylinder3d case.

[rama]

i imported geometry by using stl reader but is there any way to make my aerofoil cavity as solid material by using some stl command. The example you are suggesting they definied the boundary by using origin and extend as aerofoild cannot be defined like that im wondering if there is a direct method make my cavity a solid material by using any function that was pre defined

[Adrian]

The only “STL command” in OpenLB is the STL reader class. This class is an indicator, meaning it exposes both whether arbitrary physical locations are inside the enclosed surface and the distance to the surface. Such indicators can be used at various places in OpenLB, including the assignment of boundary conditions.

I suggest you take a look at the introductory sections of our user guide where the geometry setup is explained.

If you take a look at the cylinder case, you will see that the STL there contains the cylinder geometry, i.e. it can describe an airfoil in the same way. Of course there are also other approaches.

[Author]

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