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ion creation rate does not fit ion outflow in stationary state
Posted 5 août 2014, 06:04 UTC−4 Plasma Physics Version 4.4 0 Replies
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I am computing a model with the DC discharge interface. I have a constant Tritium density (background gas). The tritium is decaying to T+ and e-. (There is also recobination). To verify then calculations I tested the continuity equation and if the outgoing ion (electron) current density equals the integral of the generated ions (electrons). I have done this test with convection (flow of the background gas) and without. For electrons in both cases continuity equation as well as outflow equals creation rate is fine. Without convection this is also the case for ions. However implementing convection I have a much to high ion outflow current density (ca. 6.5e-5 A/m^2) compared to the resulting created current density (ca. 1e-5 A/m ^2) althought this is a stationary state...
So it seems there are additional ions created or something like that...
I attached the 1D model of the problem.
I hope somebody can help me.
Thanks
Laura
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Hello Laura Kuckert
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