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Error: Plot Surface in porous media

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Hi everyone,

I got a problem when I try to plot the surface of a porous media on Comsol but it alway shows that errors:

Can't evaluate expression.

Failed to evaluate variable:
Variable: mod1.p
Geometry: 1
Domain: 1

Failed to evaluate expression:
Expression: 101832.99389002037*mod1.p/rho0
Plot: surf1 (Surface)

Anyone know the solution, please help me !


1 Reply Last Post 1 nov. 2016, 13:45 UTC−4
Jeff Hiller COMSOL Employee

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Posted: 8 years ago 1 nov. 2016, 13:45 UTC−4
Hello Jack,
The file you attached contains multiple data sets. Make sure that whatever plot you create or modify points to the dataset that contains the solution you computed. If it points to a data set that does not contain a variable called p, you will get the error message you reported.
Best regards,
Jeff
Hello Jack, The file you attached contains multiple data sets. Make sure that whatever plot you create or modify points to the dataset that contains the solution you computed. If it points to a data set that does not contain a variable called p, you will get the error message you reported. Best regards, Jeff

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