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Addressing a mass value at time 0

Posted Sep 5, 2021, 9:25 p.m. EDT General 1 Reply

Maria Ruiz
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Hello everyone, I am trying to create a plot of mass at time t over mass at time 0. I have defined a non-local coupling integration for the domain I am interested at, and for mass at time t I have the expression m(t)=intop1(c)*MW where c is concentration and MW is molecular weight. I am wondering if there is a way to do something similar or to define a variable that can hold the value of the mass ONLY at time 0.

1 Reply Last Post Sep 6, 2021, 2:45 a.m. EDT
Henrik Sönnerlind COMSOL Employee

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Posted: 3 years ago Sep 6, 2021, 2:45 a.m. EDT

By using the withsol() operator you can pick values at any solution step. For details, see the documentation.

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Henrik Sönnerlind
COMSOL
By using the withsol() operator you can pick values at any solution step. For details, see the documentation.

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