General question regarding modelling in Elmer

General discussion about Elmer
kevinarden
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Re: General question regarding modelling in Elmer

Post by kevinarden »

There are still coincident nodes at the body intersections, normally coherence would fix. There is the option to use ElmerGrid to merge coincident nodes.

ElmerGrid 14 2 beam21.msh -merge 1.e-4 -autoclean

converts the gmsh file into an elmer mesh merging the coincident nodes, it puts the mesh in a folder called beam21
kevinarden
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Re: General question regarding modelling in Elmer

Post by kevinarden »

I found the command in gmsh it is
Coherence Mesh;
Coherence is just the geometry
beam21.geo
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Sayan
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Re: General question regarding modelling in Elmer

Post by Sayan »

Thank you... I tried with your file and now I am getting deformation of all three volumes,,..Can you tell me where did you find this coherence mesh option in Gmsh? I found only coherence in Geometry option...
Another thing is that when I am using a uniform beam of same dimension for natural frequency using same element the result is bit different than this and that one is correct but this one is not close to that...Here natural frequency is coming 41.35 and actual beam is having 30.4..Also before and after creating the correct mesh I am getting same result for natural frequency, though the initial problem is solved. now deformation of all part is taking place...
kevinarden
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Re: General question regarding modelling in Elmer

Post by kevinarden »

I could not find it in the gmsh GUI I had to manually add it to the geo file.
Sayan
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Re: General question regarding modelling in Elmer

Post by Sayan »

Yahh..Manually it's working..Thank you very much....Do you have any idea why that natural frequency is not matching?
kevinarden
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Re: General question regarding modelling in Elmer

Post by kevinarden »

You would have to post the sifs for both cases.
Sayan
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Re: General question regarding modelling in Elmer

Post by Sayan »

I pointed out the mistake...I was using only one target bodies instead of 3...It's matching now....thanks a lot...
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