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How to setting "c" coefficient in Coefficient Form PDE
Posted Sep 10, 2017, 1:24 p.m. EDT Studies & Solvers Version 4.3 0 Replies
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I am doing find the solution of PDE in COMSOL using Coefficient Form PDE. My PDE equation and its BCs described in my attached image file
My coordinate system in 2D, (X1 for horizontal axis, X2 for vertical axis)
u1: displacement in x1 direction [m], u1 is a function of X1 only.
rho = mass density [kg/m^3]
c66 is constant [N/m^2]
I setup the PDE coefficients like these:
da=alpha=gamma=beta=a=0
f=0
ea=rho
Dependent variables quantity: Displacement field(m)
Source term quantity: None
So my problem is that how to set "c" coefficient? Because in my PDE, it only has d^2(u1)/d(x2^2).
If anyone is free, please see my attached file and give a consultant.
Best regards
Attachments:
Hello NDN
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