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Provide a solution to solve this error

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Undefined variable. - Variable: comp1.spf.pA - Geometry: geom1 - Domains: 3-4 Failed to evaluate Jacobian of expression. - Expression: dvol_spatial(r(pi(2((WCH3t(comp1.plas.wCH3(-comp1.plas.rho)))+(comp1.plas.M_wCH3comp1.plas.R_wCH3))))) Failed to evaluate Jacobian of expression. - Expression: (2(-comp1.plas.rhocomp1.plas.wCH3WCH3ttest(WCH3)+comp1.plas.jr_wCH3test(WCH3r)+comp1.plas.jz_wCH3test(WCH3z)+comp1.plas.R_wCH3comp1.plas.M_wCH3test(WCH3))pir)(dvol_spatial)


1 Reply Last Post 2024/03/30 14:52 GMT-4
Robert Koslover Certified Consultant

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Posted: 7 months ago 2024/03/30 14:52 GMT-4

The full details and causes of an error condition can only occasionally be understood by inspection of Comsol software-generated error message(s) in isolation. I encourage you to post your .mph file to the forum, so that it can be reviewed by others here, and so that the issue(s) in your particular model will be easier to identify.

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
The full details and causes of an error condition can only occasionally be understood by inspection of Comsol software-generated error message(s) in isolation. I encourage you to post your .mph file to the forum, so that it can be reviewed by others here, and so that the issue(s) in your particular model will be easier to identify.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.