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Old   October 1, 2013, 08:50
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vishal
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I am trying to simulate jet in a different density medium, which gets vaporized once it reaches the vaporization temperature/pressure. Is interPhaseChangeFoam correct solver to deal with this kind of problem???

Please help
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Old   October 1, 2013, 09:09
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Nima Samkhaniani
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why not, it seems possible
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Old   October 3, 2013, 00:25
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Thanks Nima, I was wondering whether interMixingFoam will be suitable or not as it deal with three fluids,two of which are miscible. But I am not sure whether it will take into account the vaporization of the jet in a different density medium.DO you have any idea??
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Old   October 3, 2013, 02:26
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Nima Samkhaniani
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as much as i know, it does not consider vaporization
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Old   October 3, 2013, 02:35
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But do you think, that interPhaseChangeFoam takes into account three fluids (water, air and vapour)?? and If i incorporate temperature field into interMixingFoam, can it solve the problem or can I add another phase in interPhaseChange Foam. I think the later one is not possible but do you think incorporating temperature will solve the problem for the former (interMixing Foam)??
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Old   October 3, 2013, 09:27
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NaiXian Leslie Lu
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Vishal,

If you have a look in interPhaseChangeFoam, you see phaseChangeTwoPhaseMixtures, so it's only two phases. If you want a third phase you can add it yourself. I did it some time ago to take into account the non-condensable gas in a cavitating flow, in the end it was not very successful due to the incompressible methodology.

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Old   October 4, 2013, 03:47
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Which one is easier? 1) adding phase change and temperature model to interMixingFoam or 2) adding a third phase to interPhaseChange Foam???

Any idea, any one ...please reply!!
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Old   October 4, 2013, 05:28
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hello,

You should not add a third phase in interPhaseChange to take into account vapour, because this is a VOF solver (thus non miscible phase).
=> you will have non miscible vapor and air.

but you may try to add a transport scalar to the 2nd phase (air) to take into account vapor. However your scalar should not diffuse inside water, so this will not be easy.
For this, take a look at this:
http://www.cfd-online.com/Forums/ope...tml#post397654

regards,
olivier
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