node tolerance
Altair EmployeeHello,
When i want to refine my mesh size i need to adjust the node tolerance. I know where to find it, but what exactly is the node tolerance?
Thank you
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- If the tolerance is too large, you can not refine your mesh and 'equivalent' node will destroy completely your mesh.
- If the tolerance is too small, HM can not detect coincident nodes for 'equivalent' node operation
- etc...etc...
Altair EmployeeYes i jnow the element size must be larger than node tolerance. But what exactly is the node tolernace and what are the consequences when it is to large/small?
Altair EmployeeThe simple method to undestand is try yourself.
The very first thing to know: when you set node tolerance = 0.1mm for example, you can not create element with size < 0.1mm
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In general I work with node tolerance about 1/10 or 1/20 of my smallest element size.