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Help Comsol5.5

Posted 14 juil. 2022, 04:30 UTC−4 Modeling Workflow, Fuel Cells & Electrolyzers Version 5.5 1 Reply

晨 陈
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No variable is defined. - variable: comp1.rf2.pA - geometry: geom1 - region: 1 Failed to evaluate variable. - variable: comp1.tcs2.pmtcs1.minput_pressure - Defined as: comp1.rf2.pA Failed to evaluate variable. - variable: comp1.tcs2.pA - Defined as: comp1.tcs2.pmtcs1.minput_pressure Failed to evaluate variable. - variable: comp1.tcs2.rho - Defined as: (comp1.tcs2.pAcomp1.tcs2.Mn)/(R_constmax(eps,comp1.tcs2.T)) Failed to evaluate variable。 - variable: comp1.tcs2.c_wH2 - Defined as: (comp1.tcs2.wr_wH2comp1.tcs2.rho)/comp1.tcs2.M_wH2 Failed to evaluate variable。 - variable: comp1.cd.iloc_per1 - Defined as: i0_a(((comp1.tcs2.c_wH2exp(((comp1.cd.alphaa_per1F_const)(comp1.cd.Ect-Eeq_a))/(R_constcomp1.cd.pce1.per1.minput_temperature)))/c_h2ref)-((comp1.tcs2.c_wH2O_aexp(((comp1.cd.Ect-Eeq_a)(F_const(-(2-comp1.cd.alphaa_per1))))/(R_constcomp1.cd.pce1.per1.minput_temperature)))/c_h2oref)) Failed to evaluate variable. - variable: comp1.cd.iv_per1 - Defined as: comp1.cd.Av_pce1_per1comp1.cd.iloc_per1 Failed to evaluate variable. - variable: comp1.cd.ivtot - Defined as: comp1.cd.iv_per1 Failed to evaluate the evaluation expression. - expression: comp1.cd.ivtotdvol_spatial A Jacobian matrix that failed to evaluate an expression. - expression: (comp1.cd.Ilxtest(comp1.philx)+comp1.cd.Ilytest(comp1.phily)+comp1.cd.Ilztest(comp1.philz)+comp1.cd.ivtottest(comp1.phil))*(dvol_spatial)

1 Reply Last Post 14 juil. 2022, 10:04 UTC−4
Jeff Hiller COMSOL Employee

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Posted: 2 years ago 14 juil. 2022, 10:04 UTC−4

Hello,

I am afraid your copying-and-pasting an error message into the Discussion Forum without providing any context makes it unlikely that you'll get useful responses, if any. You will be more likely to induce responses if you can describe what you are trying to model (especially if you can do so in mathematical terms) and attach your .mph file.

Best,

Jeff

-------------------
Jeff Hiller
Hello, I am afraid your copying-and-pasting an error message into the Discussion Forum without providing any context makes it unlikely that you'll get useful responses, if any. You will be more likely to induce responses if you can describe what you are trying to model (especially if you can do so in mathematical terms) and attach your .mph file. Best, Jeff

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