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Making a 3D system translationally invariant?

Hi, I have this simple question: I have a COMSOL model for a physical problem (say a structural mechanics problem) defined on a 3D prismatic body (say a cylinder with axis coinciding with Z axis). I...

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Re: Making a 3D system translationally invariant?

Hi Alberto, It would help if you could elaborate on why you don't want to do a 2D analysis. My guess is that you want to couple the result of this mechanical analysis to another problem that cannot be...

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Re: Making a 3D system translationally invariant?

Hi Jeff, thanks for your interest. No, the reason for my request is not what you have guessed. I will explain it in more detail: As you know, the 2D structural mechanics models intended for the...

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Re: Making a 3D system translationally invariant?

Thanks for the clarification. But then I don't get why you wouldn't set up the problem for u, v, and w in 2D. Have you looked into using what comsolites refer to as "equation-based modeling"? Jeff PS:...

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Re: Making a 3D system translationally invariant?

Thanks for the clarification. But then I don't get why you wouldn't set up the problem for u, v, and w in 2D. Have you looked into using what comsolites refer to as "equation-based modeling"? Jeff PS:...

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Re: Making a 3D system translationally invariant?

Hi, It seems to me that your first approach with the periodic conditions should be appropriate. Could you please post the model, so that we can see the what happens? There are some conditions with...

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