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How to Define Poisson Boltzmann equation in Cylindrical coordinates

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Hi, I want to define poisson Boltzmann equation in cylindrical coordinates in comsol, can some one please help me. The equation is dsqrU/dRsqr + (1/R)*dU/dR + dsqr U/dZsqr = (kh)^2 * sinh(U)


0 Replies Last Post 21 mai 2019 à 12:18 UTC−4
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Hello Ali Nawaz Babar

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