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Variable time step for pulse features
Posted 2020年4月20日 GMT-4 03:53 Plasma Physics, Computational Fluid Dynamics (CFD), Studies & Solvers Version 5.5 0 Replies
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Dear All,
I am trying to model a dc discharge in nitrogen with plasma module.
The time dependent solver works fine to a point with time steps of 10^-8s. However, at a cetain instance in time, there is a very sharp rise (or pulse) in one of the paramteres (current). At this point the solver gets upset and starts diverging. I am guessing that I need finer time steps at this point.
Is it possible to use variable time steps so that I can 'program' to select 'finer time intervals' when the sharp rise in current occurs and use regular time steps when the parameters are mostly uniform. How?
-------------------Thanking you,
-Malik M Tahiyat
Graduate Research Assistant,
Department of Mechanical Engineering
University of South Carolina (USC)
300 Main Street, Room A 137
Phone: +1(803)-318-0274
Hello Malik M Tahiyat
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