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what meaning of convergence in comsol?

Posted 30.08.2010, 00:54 GMT-4 0 Replies

Sungho Kim
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I am trying to simulate simple human carotid artery wtih comsol. The basic information is get from other published data.

This model is verifiied with other FEM program kind of Ansys. But when I used same information and run structural simulation.

I got the following results: Convergence range between 1.0e6 to 4.0e6. And the calculation tooks a long time but still going.

I try to figure out the meaning of convergence in comsol program. But I didn't get exact meaning.

I think this is a simple example to test structural mechanics in comsol but it looks comsol can't find the solution.

I changed various type boundary condition but the convergence range is same.

Even the initial pressure applid on the surface of blood vessel is 0 but even in this case I got huge number of convergence.

Is there anyone to help me to solve this problem?
0 Replies Last Post 30.08.2010, 00:54 GMT-4
COMSOL Moderator

Hello Sungho Kim

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