Advancing front mesh on volume 121 failed. Check the face mesh.

Wenjun Zhu

Neither the aided mesh nor the assigned mesh point (with the aided mesh inactive) can mesh volume 121.

Any suggestions?

Mohammed Elamin_22169

Hi Wenjun, 

This definitely a tough problem to mesh with all the single conductors modeled. The issue that the mesh on the volume 121 (air surrounding the conductors) has very coarse mesh compared with the mesh size on conductors inside and hence you have the issue. Here what I recommend : 

• Keep the aided mesh active. 
• Assign mesh line of type "Length of line at extreme point" to all the outside lines and arcs of volume 21 and make size of element very close to the mesh of the conductors inside. I would start with 0.5 mm and decrease it if needed. 
• You need to remove the extruded mesh applied to the top faces of the volume for sure. Just go with the automatic tri element. 
• Remove the relaxation of the all outside faces of the volume 121. 
• Change the relaxation of volume 121 to low. 

I hope with changes will help you meshing the model. 

Thanks,  

Wenjun Zhu

Mohammed Elamin_22169 said:

Hi Wenjun, 

This definitely a tough problem to mesh with all the single conductors modeled. The issue that the mesh on the volume 121 (air surrounding the conductors) has very coarse mesh compared with the mesh size on conductors inside and hence you have the issue. Here what I recommend : 

• Keep the aided mesh active. 
• Assign mesh line of type "Length of line at extreme point" to all the outside lines and arcs of volume 21 and make size of element very close to the mesh of the conductors inside. I would start with 0.5 mm and decrease it if needed. 
• You need to remove the extruded mesh applied to the top faces of the volume for sure. Just go with the automatic tri element. 
• Remove the relaxation of the all outside faces of the volume 121. 
• Change the relaxation of volume 121 to low. 

I hope with changes will help you meshing the model. 

Thanks,  

Thanks, Elamin. But...

Wenjun Zhu

Mohammed Elamin_22169 said:

Hi Wenjun, 

This definitely a tough problem to mesh with all the single conductors modeled. The issue that the mesh on the volume 121 (air surrounding the conductors) has very coarse mesh compared with the mesh size on conductors inside and hence you have the issue. Here what I recommend : 

• Keep the aided mesh active. 
• Assign mesh line of type "Length of line at extreme point" to all the outside lines and arcs of volume 21 and make size of element very close to the mesh of the conductors inside. I would start with 0.5 mm and decrease it if needed. 
• You need to remove the extruded mesh applied to the top faces of the volume for sure. Just go with the automatic tri element. 
• Remove the relaxation of the all outside faces of the volume 121. 
• Change the relaxation of volume 121 to low. 

I hope with changes will help you meshing the model. 

Thanks,  

Hi，Elamin. I have attached the modified project with the mesh setting as your advised.

However, it still says "mesh are suppressed". Could you help me to check if I set the mesh right??

Many thanks!

Mohammed Elamin_22169

Wenjun Zhu said:

Hi，Elamin. I have attached the modified project with the mesh setting as your advised.

However, it still says "mesh are suppressed". Could you help me to check if I set the mesh right??

Many thanks!

Hi Wenjun, 

Looking at the end winding area, I can see an intersection between the conductors volume and the air around them. Typically this should results on invalid geometry on Flux. but for some reason it didn't detect that. I wonder if it is visualization issue but it doesn't seem to be the case. 

Can you please double check the geometry on this area and verify there is no intersection.

 

Thanks,