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Mesh Dimension Scaling in SU2

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Old   March 14, 2020, 08:49
Default Mesh Dimension Scaling in SU2
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AASHA G C
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I am a new SU2 user and needed to know how the mesh dimensions can be scaled up or down in order to have different chord lengths with the same mesh geometry because we want to use the mesh with unit airfoil chord and specify it as 15 cm actually. Also, what purpose do the reference parameters serve, like reference length and area?Do they act as scaling parameters?
Thank you.

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AASHA
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Old   March 26, 2020, 04:16
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Dylan
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Hi,

To scale the mesh dimensions just include these lines in your cfg and then run it through SU2_DEF.


DV_KIND= SCALE_GRID
DV_MARKER= ( tags of your mesh )
DV_PARAM= ( 1.0 )
DV_VALUE = scale factor you want



The other question you ask, about the reference parameters, I don't know. I'm also relatively new to SU2 and still trying to figure things out. If you find out I would be interested in knowing their function.



I hope i was at least a bit useful.
Best regards,
Dylan
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Old   August 2, 2022, 05:20
Default mesh and geometry deformation
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chandan
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Quote:
Originally Posted by dysd View Post
Hi,

To scale the mesh dimensions just include these lines in your cfg and then run it through SU2_DEF.


DV_KIND= SCALE_GRID
DV_MARKER= ( tags of your mesh )
DV_PARAM= ( 1.0 )
DV_VALUE = scale factor you want



The other question you ask, about the reference parameters, I don't know. I'm also relatively new to SU2 and still trying to figure things out. If you find out I would be interested in knowing their function.



I hope i was at least a bit useful.
Best regards,
Dylan

hello Dylan
can u please guide as what can be written as input in DV_MARKER= ( tags of your mesh )
thanks
chandan
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Old   August 4, 2022, 15:36
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Wally Maier
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Hi Chandan,

The DV_MARKER option allows you to specify what "markers" in the mesh you wish to be scaled. For example, MARKER_FAR= (farfield) is an example of setting a farfield boundary condition using the "farfield" tag in the mesh file.

So if you wish to scale the the mesh, may do something like DV_MARKER=(airfoil, farfield).

Let me know if that helps.
Wally
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Old   August 4, 2022, 17:07
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chandan
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Originally Posted by wallym View Post
Hi Chandan,

The DV_MARKER option allows you to specify what "markers" in the mesh you wish to be scaled. For example, MARKER_FAR= (farfield) is an example of setting a farfield boundary condition using the "farfield" tag in the mesh file.

So if you wish to scale the the mesh, may do something like DV_MARKER=(airfoil, farfield).

Let me know if that helps.
Wally
Dear Wally
thanks, got the concept.
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