Hi everyone. I am new in Comsol multiphysics and have some questions about coupling two-phase laminar flow (phase-field method) and AC/DC electric current in Comsol multiphysics 5.6.
My problem is adding the Columb force (Electric field* volumetric charge density) and dielectric force due to polarization (0.5*(|E|^2))*grad(epsilon), which epsilon is the permittivity of materials and grad is the gradient operator.
How can I calculate them and add them to laminar flow as body force (write their formulation)?
Thanks for your time and consideration.
From the equation of space charge polarization, it is then determined that the total amount of dielectric polarization in a material is the sum of the electronic, orientational, and interfacial polarizabilities, or α=αc+α∞+α0
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