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Changing the axis of symmetry in 2D domains

Posted 29 sept. 2024, 06:54 UTC−4 Heat Transfer, Geometry, Modeling Workflow Version 6.1 6 Replies

Shubhra Pande
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The below post is related to an archived discussion

Hello, from the archived discussion above, I understand that changing the axis of symmetry was not possible 5 years back. I would like to know if it is possible now in version 6.1, and if so, how?

Otherwise, my query is:

I want to create a cylindrical domain where the axis of symmetry is along the z-axis, and not in radial direction. How can I do this?

Thanks in advance!

6 Replies Last Post 16 oct. 2024, 03:20 UTC−4
Edgar J. Kaiser Certified Consultant
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Posted: 1 year ago 29 sept. 2024, 10:59 UTC−4

Isn't that planar symmetry?

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Isn't that planar symmetry?
Acculution ApS Certified Consultant
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Posted: 1 year ago 30 sept. 2024, 03:43 UTC−4

The axis of symmetry is indeed the z-axis already, so perhaps you mean that you would like to have it be the r-axis? Could you explain the need for this? Can you not just rotate the geometry to fit the default axes?

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René Christensen, PhD
Acculution ApS
www.acculution.com
info@acculution.com
The axis of symmetry is indeed the z-axis already, so perhaps you mean that you would like to have it be the r-axis? Could you explain the need for this? Can you not just rotate the geometry to fit the default axes?
Shubhra Pande
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Posted: 1 year ago 15 oct. 2024, 11:10 UTC−4

Hello @Acculation ApS,

yes, I would like to have a circle drawn in the radial direction, with properties defined in the same direction. Can you help me to understand how i can "rotate the geometry to fit the default axes"?

Hello @Acculation ApS, yes, I would like to have a circle drawn in the radial direction, with properties defined in the same direction. Can you help me to understand how i can "rotate the geometry to fit the default axes"?
Robert Koslover Certified Consultant
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Posted: 1 year ago 15 oct. 2024, 12:31 UTC−4

The description is confusing. I strongly encourage you to draw and post a picture of the circle that you are talking about, along with the axes. Also, please be sure to label the axes.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
The description is confusing. I strongly encourage you to draw and post a picture of the circle that you are talking about, along with the axes. Also, please be sure to label the axes.
Jeff Hiller COMSOL Employee

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Posted: 1 year ago 15 oct. 2024, 15:12 UTC−4

Shubrha,

I don't understand your latest post either.

To create an axisymmetric model of an object that in real life is cylindrical, in COMSOL, after specifying in the Model Wizard that your model is 2D axisymmetric, you would draw a rectangle in the Graphics window. If you were to draw a circle instead, that would correspond to a real life torus.

Best,

Jeff

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Jeff Hiller
Shubrha, I don't understand your latest post either. To create an axisymmetric model of an object that in real life is cylindrical, in COMSOL, after specifying in the Model Wizard that your model is 2D axisymmetric, you would draw a rectangle in the Graphics window. If you were to draw a circle instead, that would correspond to a real life torus. Best, Jeff
Acculution ApS Certified Consultant
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Posted: 1 year ago 16 oct. 2024, 03:20 UTC−4

Sounds like you want to draw a circle to represent a cylinder, in which case I assume you want to look at the cross-sectional field variations only. If that is true, then you want to go with 2D, not 2Daxi.

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René Christensen, PhD
Acculution ApS
www.acculution.com
info@acculution.com
Sounds like you want to draw a circle to represent a cylinder, in which case I assume you want to look at the cross-sectional field variations only. If that is true, then you want to go with 2D, not 2Daxi.

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