# Steady state at vof!!

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 December 18, 2002, 07:52 Steady state at vof!! #1 Heydari Guest   Posts: n/a I wanted to know if we can get steady state, in vof or not, I mean in the steady state condition, should the flux net of the field equal to zero or not? NOTE :The initial condition and all the boundaries of the unsteady state are known.

 December 18, 2002, 09:39 Re: Steady state at vof!! #2 Zafer Guest   Posts: n/a Yes, you can get steady state at VOF. You should use the implicit scheme in VOF model. You will get the flux net.

 December 21, 2002, 06:40 Re: Steady state at vof!! #3 Heydari Guest   Posts: n/a I have used this implicit scheme, but the final net flow rate is not equal to zero.

 December 21, 2002, 21:48 Re: Steady state at vof!! #4 MissNancy Guest   Posts: n/a How did you calculate the net flow? Net flow of which fluid? Nancy

 December 22, 2002, 05:23 Re: Steady state at vof!! #5 heydari Guest   Posts: n/a net flow rate calculation is done by program.

 December 22, 2002, 05:54 Re: Steady state at vof!! #6 Nancy Guest   Posts: n/a Yes for steady state, the net flux is zero, if not, your solution is not converged assuming that your program is correct. For unsteady state, [Total accumulation+initial mass=total input of mass-total output of mass] for that time. If not, your program is wrong/ solution didn't converge. Hope this helps. Nancy

 December 22, 2002, 08:27 Re: Steady state at vof!! #7 heydari Guest   Posts: n/a What do you mean by accumulation.. this sumation is calculated on what... thanks

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