Scaling a CAD Geometry

AS_Aero · January 30, 2018, 10:28

Hi All

I have a CAD geometry wich is of 20 m span length but since I cant simulate that big one I need to scale it to 20cm so that I can still see the effects !! Could someone help me on this ? How can I achieve this in Ansys Geometry or Spaceclaim ?
Thanks in advance.

evcelica · January 30, 2018, 15:45

We not simulate the real size? Everything would be the same as the scaled version, mesh size would just be larger. You will introduce errors scaling. Even is you are perfect with you Pi groups and dimensional analysis, which would be difficult to get right.
You can scale in design modeler (Create >> Bdy Transformation >> Scale) and in CFX Pre.

January 30, 2018, 10:28	Scaling a CAD Geometry	#1
AS_Aero Senior Member Join Date: Mar 2013 Location: Germany Posts: 357 Rep Power: 14	Hi All I have a CAD geometry wich is of 20 m span length but since I cant simulate that big one I need to scale it to 20cm so that I can still see the effects !! Could someone help me on this ? How can I achieve this in Ansys Geometry or Spaceclaim ? Thanks in advance.

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January 30, 2018, 15:45		#2
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,167 Rep Power: 23	We not simulate the real size? Everything would be the same as the scaled version, mesh size would just be larger. You will introduce errors scaling. Even is you are perfect with you Pi groups and dimensional analysis, which would be difficult to get right. You can scale in design modeler (Create >> Bdy Transformation >> Scale) and in CFX Pre.