Hello, i have a 3D model of the human eye, i'm trying to add a LASER source and to examine the heating distribution, i added materials for each domain such as absorption and scattering coefficients, heat capacity, mass density and conductivity as you can see here:
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for gaussian beam
https://en.wikipedia.org/wiki/Gaussian_beam
under global parameters i added some parameters:
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and some analytic expressions:
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and i got this error:
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what am i doing wrong?
