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UDS for electric field

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Old   July 12, 2013, 05:34
Default UDS for electric field
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I want to simulate an electric field for an electric precipitator, therefore I need two equations:

1) the poisson equation I could solve with UDS (fluxfunction -> none)
2) charge conservation equation

How can I create an UDS for charge conservation?, it has this form:

E*gradient*a = -aČ/b
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Old   August 6, 2013, 09:41
Default uds flux
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I will solve now charge conservation in the form:

gradient(rho*b*E)=0

E=gradient(phi) is the electric filed vector, which is calculated by other UDS as C_UDSI_G

so I need to create now an UDS flux for charge conservation, where I can include the C_UDSI_G from other UDS

is that possible?
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