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[DesignModeler] Why must create plan and sketch?

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Old   February 21, 2013, 10:52
Default Why must create plan and sketch?
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Hi all,

I am new to CFD and am learning ANSYS DM. Can any kind soul please tell me when and why I must create a plan and then a sketch for almost every new line I intended to draw? By following the tutorials I still don't get that how and how far it will negatively affect the later steps (surface/solid generation/operations), will it? I have little experience with simple CAD drawing but it doesn't help at all.

Thank you in advance!
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Old   February 21, 2013, 11:00
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Josef Runsten
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What are you drawing?..
Perhaps you are making it more complicated than it could be
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Old   February 21, 2013, 11:44
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Hi Jrunsten,

I haven't have my own geometry. I am still following the tutorials and try to understand the drawing operations. But I get confused at this very first plane and sketch thing. For example a 2D tutorial require me to create a plane and a lot of sketches, while I can just draw directly if using other CAD software. A 3D tutorial need a plane whenever I need to draw something that is not on the same plane, while intuitively with a suitable (x,y,z) coordinate I should be able to position drawings in a 3D space directly...
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Old   February 21, 2013, 12:03
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Things will get 3d later. you better start with a plane so you can decide where to extrude. that the basic step of drawing... when one draws a cube, he does not enter the coordinates of the 8 corners , then link them with a line and then create a surface and then a volume... see how long it is... instead, one draws a square (on a plane) then extrude it along the z direction...
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New to ICEM CFD, try this document --> http://goo.gl/G2gkE
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