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void equations for Lagrange multiplier
Posted 29 mag 2020, 04:37 GMT-4 Semiconductor Devices, Parameters, Variables, & Functions, Equation-Based Modeling Version 5.3a 0 Replies
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Hello everyone, I am simulating with semiconductor interface and I am trying to specify a boundary condition using weak contribution. In fat, I am trying to connect an electric potential that I have calculated with electrostatic interface previusly and I want to use the electric potential in semiconductor interface (manully I am coupling physics). I tried using weak contribution and weak constraint for the boundary, but every time I want to compute, it says there are a number of void equations for lagrange multiplier, or there is an empty raw for matrix. Even when I want to set the electric potential to a simple number, this message shows up. I tried to set the initial value for the lagrange multiplier to a small number but it didn't work. Can someone help me? Thank you
Hello Shahrzad Molavi
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