Capacitance by solving Poisson equation
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Hi ,
I want to find the capacitance by solving the Poisson equation. I solved the voltage potential and was able to plot the voltage potential. I want to find the electric potential and energy from from the voltage
First i have to find electric potential which is gradient of voltage.
Then i have to find the energy Energy = integral(1/2 * Epsilon * E^2) over volume.
Can you help me find the gradient of voltage and then the energy ?
回答(1 个)
Ravi Kumar
2020-2-7
If you setup the problem using PDE Toolbox, look here for example, then you get the gradients of the solution in the results.
Regards,
Ravi
5 个评论
Ravi Kumar
2020-2-12
I don't have good suggestion without knowing what is the required solution. My guess is that you might be encountering under resolved results, try increasing mesh density.
Regards,
Ravi
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