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How do I extract the gradient at a specified location?
Posted May 27, 2016, 5:19 p.m. EDT Parameters, Variables, & Functions, Results & Visualization, Studies & Solvers Version 5.2 1 Reply
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Hello,
I'm new to COMSOL. I tried to use COMSOL to solve Fick's second law, Ct=Cxx, for a 1-D geometry using the coefficient form PDE. Once I have C, which is a function of x and t, I'd like to plot the gradient of C at x=0 as a function of time. Is there a way to specify Cx at x=0?
Thanks,
Dai
I'm new to COMSOL. I tried to use COMSOL to solve Fick's second law, Ct=Cxx, for a 1-D geometry using the coefficient form PDE. Once I have C, which is a function of x and t, I'd like to plot the gradient of C at x=0 as a function of time. Is there a way to specify Cx at x=0?
Thanks,
Dai
1 Reply Last Post May 31, 2016, 10:16 a.m. EDT
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Posted:
9 years ago
I got it. I needed to do a "Point Graph", which would let me select a boundary point as my domain of interest, rather than a "Line Graph", which selects the entire line segment. I'm starting to get familiar with COMSOL.