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Steady state vs. transient while modelling solidification/melting in FLUENT

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Old   October 12, 2019, 13:16
Default Steady state vs. transient while modelling solidification/melting in FLUENT
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Cedric
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I'm selecting steady state for a melting problem right now, but once convergence is reached it shows the liquid fraction for the whole domain as 1. In this case I guess it is appropriate to solve a transient problem instead of steady state?

Any extra tips regarding the selection of steady state vs transient specifically for melting/solidification will be welcome.
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Old   October 14, 2019, 06:30
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Ahmed
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Quote:
Originally Posted by Cedric1998 View Post
I'm selecting steady state for a melting problem right now, but once convergence is reached it shows the liquid fraction for the whole domain as 1. In this case I guess it is appropriate to solve a transient problem instead of steady state?

Any extra tips regarding the selection of steady state vs transient specifically for melting/solidification will be welcome.
Try to solve it with a transient state and compare both results. Also extract results at various time steps to see the changes in your desired output result.
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Old   October 16, 2019, 05:12
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Moritz Kuhn
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Could you explain your problem setup more detailed? I can not imagine a steady case with a liquid fraction between 0 and 1, it will always 0 or 1. So it should be a transient problem.
-- Moritz
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