Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Two phase flow with structure error
Posted Mar 7, 2023, 6:43 a.m. EST Fluid & Heat, Microfluidics, Structural Mechanics Version 6.0 0 Replies
Please login with a confirmed email address before reporting spam
Hi,
I have an issue with a phase field model which contains two fluids and a structure. I would like to see the effect of fluids on the structure. However, I am not sure what I am doing wrong and receiving the error below.
I followed this application https://www.comsol.com/model/two-phase-flow-with-fluid-structure-interaction-4515
Undefined variable.
- Variable: comp2.pf2.u_primez
- Geometry: geom2
- Domain: 3
Failed to evaluate Jacobian of expression.
- Expression: dvol_spatial*(r*(pi*(2*(comp2.pf2.res_prime*(-(comp2.pf2.u_primer*comp2.pf2.tau_prime))))))
Failed to evaluate Jacobian of expression.
- Expression: (2*comp2.pf2.conservationCompensation*pi*r)*(dvol_spatial)
I'd highly appreciate any recommendations.
Attachments:
Hello Ibrahim
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.