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How to mesh a 2D model with ultra huge length-width ratio?
Posted 2016年2月2日 GMT-5 03:57 Mesh Version 5.2 1 Reply
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I suppose to mesh a model which is a rectangle with 0.5nm width and 60um length. In width direction only one mesh is OK. Is there some good idea to deal with it?
Thanks a lot!
WU Han
Thanks a lot!
WU Han
1 Reply Last Post 2016年2月2日 GMT-5 09:01
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Posted:
9 years ago
Hi
I suggest that you modify your geometry by scaling the other dimension by some appropriate length, let's call it L. Then when you have a derivative (say) du/dx you convert it to du/dz where z = x/L. This scaling has to be taken into account in the interpretation of the results, or by modifying appropriate constants. You did not disclose your physics, but if it were, for example, electrostatics you devide the conductivity by L in x direction. Like this:
k*(du/dx) = (k/L)*(du/dz).
Wish this helps. More hints you can find in the database.
BR
Lasse
I suggest that you modify your geometry by scaling the other dimension by some appropriate length, let's call it L. Then when you have a derivative (say) du/dx you convert it to du/dz where z = x/L. This scaling has to be taken into account in the interpretation of the results, or by modifying appropriate constants. You did not disclose your physics, but if it were, for example, electrostatics you devide the conductivity by L in x direction. Like this:
k*(du/dx) = (k/L)*(du/dz).
Wish this helps. More hints you can find in the database.
BR
Lasse