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Convergence problem in very low velocity

Posted 14 févr. 2024, 23:21 UTC−5 3 Replies

Lakshmi sree P
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HI, I am using Euler euler method to simulate multiphase flow in 2D domain. When my inlet velocity is 0.001 m/s the solver is showing the below error (attached). I have used "automatic highly non-linear (Newton)" method as non-linear solver for uc,ud,and p. But whenever im using slightly higher velocity ( say 0.002 m/s) it is converging.

Is it the problem with velocity ?

3 Replies Last Post 29 févr. 2024, 00:26 UTC−5
Jeff Hiller COMSOL Employee

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Posted: 9 months ago 15 févr. 2024, 08:56 UTC−5
Updated: 9 months ago 15 févr. 2024, 08:56 UTC−5

Hello Lakshmi,

The file you attached seems to be blank.

Jeff

-------------------
Jeff Hiller
Hello Lakshmi, The file you attached seems to be blank. Jeff
Lakshmi sree P
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Posted: 9 months ago 16 févr. 2024, 01:21 UTC−5
Updated: 9 months ago 16 févr. 2024, 01:20 UTC−5

hi, sorry, some errror occured .I am uploading the document again. Kindly check

hi, sorry, some errror occured .I am uploading the document again. Kindly check
Lakshmi sree P
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Posted: 9 months ago 29 févr. 2024, 00:26 UTC−5
Updated: 9 months ago 29 févr. 2024, 00:26 UTC−5

Hi, iam still facing with the same issues with low velocity, Can someone help?

Hi, iam still facing with the same issues with low velocity, Can someone help?

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