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Meshing a twisted wire

Posted 2013年12月25日 GMT-5 16:10 Low-Frequency Electromagnetics, Mesh Version 4.3 6 Replies

Mikhail Trunov
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Hi,

I'm trying to model the flow of current in a twisted wire. The inner rods are of steel, the outer of Al (see attached file). The steel rods are twisted clockweise, while the Al rods are twisted counter-clockwise.
When I mesh it, it fails to generate mesh for some domains.
I would like to ask how to mesh helix structures, when they experience point contact?

Attachments:

6 Replies Last Post 2015年9月1日 GMT-4 09:04
Edgar J. Kaiser Certified Consultant
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Posted: 1 decade ago 2013年12月26日 GMT-5 06:17

Mikhail,

you could try to put together a meshing sequence generating swept meshes for one domain (strand) after the other. This should not be impacted by the point contacts.
Remains the problem to mesh the space between the strands. I don't have a suggestion there and due to the point contacts this will necessarily produce unfavourable element geometries and maybe current singularities.
Point contacts should be avoided.

Cheers
Edgar

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Mikhail, you could try to put together a meshing sequence generating swept meshes for one domain (strand) after the other. This should not be impacted by the point contacts. Remains the problem to mesh the space between the strands. I don't have a suggestion there and due to the point contacts this will necessarily produce unfavourable element geometries and maybe current singularities. Point contacts should be avoided. Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com
Mikhail Trunov
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Posted: 1 decade ago 2014年2月11日 GMT-5 11:11
Edgar,

Thank you. Could you please provide some details on swept meshing. All the time I get an error (Unsupported topology of linking face) when trying to do the following thing:
First I mesh several boundaries with free triangular (see attache file).
then I add swept to my Mesh-1 where I indicate source faces to be already meshed in previous step boundaries and destination faces as boundaries on the other side.
I've already recreated my geometry and turned point contacts into surface contacts (another attached file)

So what am I doing wrong? Or maybe its impossible to mesh the geometry with swept tool?
Edgar, Thank you. Could you please provide some details on swept meshing. All the time I get an error (Unsupported topology of linking face) when trying to do the following thing: First I mesh several boundaries with free triangular (see attache file). then I add swept to my Mesh-1 where I indicate source faces to be already meshed in previous step boundaries and destination faces as boundaries on the other side. I've already recreated my geometry and turned point contacts into surface contacts (another attached file) So what am I doing wrong? Or maybe its impossible to mesh the geometry with swept tool?

Attachments:

Edgar J. Kaiser Certified Consultant
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Posted: 1 decade ago 2014年2月11日 GMT-5 12:18
Mikhail,

the swept mesh needs a constant cross section along the sweeping direction. So the interpenetration of wires prevents it from success.

Cheers
Edgar

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Mikhail, the swept mesh needs a constant cross section along the sweeping direction. So the interpenetration of wires prevents it from success. Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com
Mikhail Trunov
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Posted: 1 decade ago 2014年2月12日 GMT-5 04:03
Thank you!
Thank you!
Edxon Licon
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Posted: 1 decade ago 2014年9月4日 GMT-4 11:45
Hello,
Did you solve your meshing problem?, I am in a similar issue
Hello, Did you solve your meshing problem?, I am in a similar issue
Taha Göksu
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Posted: 9 years ago 2015年9月1日 GMT-4 09:04
Hi Edxon
how are you ?

I want to ask a question. My question is related with twisted wire or wire coil mesh. Can you help me which type of mesh is suitable in this topic ?
Thank you
Hi Edxon how are you ? I want to ask a question. My question is related with twisted wire or wire coil mesh. Can you help me which type of mesh is suitable in this topic ? Thank you

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