Having trouble reducing the loss

[mahmudh254]

Hi,

I am trying to solve the following 2-equation system (PDE) for U (output) and V (output) where x(1D space) and t(time)is the input. I have used DeepXDE but the model can't decrease the loss but rather increases to NAN. The boundary condition for U is 1+0.01sin(2pifreqt) at x = 0. The initial condition (t = 0) for U is 1 and V is 0. Could you please kindly give me any suggestions on where should I look into? Thank you. I have attached the screenshot of the code.

[lululxvi]

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