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Steady state at vof!!

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Old   December 18, 2002, 07:52
Default Steady state at vof!!
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Heydari
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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.
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Old   December 18, 2002, 09:39
Default Re: Steady state at vof!!
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Zafer
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Yes, you can get steady state at VOF. You should use the implicit scheme in VOF model. You will get the flux net.
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Old   December 21, 2002, 06:40
Default Re: Steady state at vof!!
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Heydari
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I have used this implicit scheme, but the final net flow rate is not equal to zero.
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Old   December 21, 2002, 21:48
Default Re: Steady state at vof!!
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MissNancy
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How did you calculate the net flow? Net flow of which fluid?

Nancy
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Old   December 22, 2002, 05:23
Default Re: Steady state at vof!!
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heydari
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net flow rate calculation is done by program.
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Old   December 22, 2002, 05:54
Default Re: Steady state at vof!!
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Nancy
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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
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Old   December 22, 2002, 08:27
Default Re: Steady state at vof!!
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heydari
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What do you mean by accumulation.. this sumation is calculated on what... thanks
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