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Time Stepping ( solve node)
Posted May 2, 2017, 3:56 a.m. EDT Version 3.5a, Version 4.2, Version 5.3 0 Replies
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in comsol 3.5a:
i want to use General PDE form for modeling of a discharge.
the Dimension is 1D ; x=[0,1] mm
i have 8 general pde forms for "Poisson equation, ions density and electron energy"
in x=0 , potential=V0*cos(2*pi*Freq*t)
in x=1 mm, potential =0
Freq= 13.6e6 MHz
I build the model very exactly.
my problem is in Time Stepping ( solve node)
if I run model for 150 cycles , my results are Acceptable. ==>range(0,(1/13.6e6-0)/(24-0),150/13.6e6)
but if I run model for 1 cycle, my results aren't Acceptable.==>range(0,(1/13.6e6-0)/(24-0),1/13.6e6)
I know when I would choose 1 cycle ,The calculations are repeated until convergence is achieved !
so you do not have to select 150 cycles.
So what's the problem?
thanks
Hello Parviz Khan
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