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Assigning a function to an Electric Potential boundary
Posted 2020年1月13日 GMT-5 05:39 Electromagnetic Heating, Low-Frequency Electromagnetics 1 Reply
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Hello,
I am currently making a model using the Electric Currents and the Bioheat Transfer physics. I want to assign a waveform to an electric potential: In stead of a continue 2000 V boundary I want the function [2000e^(-(t/tau-0.003))^2)] assigned to it. When I inserted this formula into the Electric potential field my simulation wouldn't finish, the convergence plot kept going up. It worked before I changed this so I am assuming this is the cause. So my question is: How do I assign a wavefunction to an electric potential?
Kind regards, Carolien
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Carolien,
you may need to add a stationary step that applies 2000V to the boundary before the time dependent step. In the time dependent step you set the initial values to the result of the first stationary step. Make sure you add a parameter t = 0 into the global parameter list to provide a correct expression for the stationary step. This t will later be overwritten by the time dependent solver. Without this the time dependent solver may not be able to master the initial step.
Cheers Edgar
-------------------Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com