[Parisa_Khiabani]

Hello OpenFoam experts,

I would like to simulate flow boiling in a channel flow, say minichannels. Is there any available solver in OpenFOAM to model that? For sure, I would like to use VOF.
I really appreciate your kind advice and help.

Cheers,
Parisa

[Parisa_Khiabani]

I am really anticipating your helps, guys,

Thanks a lot,

Parisa

[Parisa_Khiabani]

Nobody?

[seav]

What kind of medium you want to simulate ? Compressible or incompressible ?

I would suggest you this scroll down to Multiphase section. Maybe you will find something interesting.

cheers
seav

[Parisa_Khiabani]

Thanks for your response,
I would like to simulate incomprehensible using VOF. I think twoPhaseEulerFoam is OK to start with. However, I would like to know about the limitations of this solver. Or any suggestion?

[seav]

I have never used this solver. Only tip I can give you is to explore ~/OpenFOAM-version/applications/solvers/multiphase/twoPhaseEulerFoam/ *.H files, *.C files and all others.

Maybe you will find something interesting.

seav

[Parisa_Khiabani]

Thanks a lot,
Yes, I am working on them.

Cheers,
Parisa

[wyldckat]

Greetings to all!

A word of caution: there have been a few threads on the OpenFOAM sub-forums discussing whether it was possible to simulate VOF in a micro scale. So far I have not seen any positive feedback on this being possible.
The closest I've seen has been the possibility to observe the capillary effect, as demonstrated by the tutorial "multiphase/interFoam/laminar/capillaryRise".

Best regards,
Bruno

[Parisa_Khiabani]

Thanks wyldckat,
However, my case is not in micro scale. Suppose that I am simulationg boiling flow in macro scale. Do you know any valid solver? I would like to use VOF. What do you think about twoPhaseEulerFoam?

Thanks

[wyldckat]

Originally Posted by Parisa_Khiabani

However, my case is not in micro scale. Suppose that I am simulationg boiling flow in macro scale.

Since you stated the following in the first post:

Originally Posted by Parisa_Khiabani

say minichannels

I assumed the worst case scenario, since "minichannels" would likely be in the millimetre scale, which could be close enough to micro scale.

Unfortunately I'm not familiar with any solver in OpenFOAM which provides the ability to solve boiling fluid flow. From what I can see on the page Seav suggested, none of the existing solvers in OpenFOAM 2.3.0 will be able to simulate this.

A quick search with Google about "OpenFOAM boiling" lead me to this thread: http://www.cfd-online.com/Forums/ope...hangefoam.html


edit: I vaguely remembered something named "evap" in OpenFOAM... oh, I have a solver named evapVOFHardt built in my environment for OpenFOAM 2.3. Looks like I handled a quick port of it for OpenFOAM and provided it here: https://github.com/wyldckat/evapVOFHardt
The original source code and documentation is provided here: http://www.ttd.tu-darmstadt.de/forsc...vofhard.en.jsp

[wouter]

Hello Parisa_Khiabani
this thesis is about boiling as far as I can tell

Development and validation of a two-phase CFD model
using OpenFOAM
Alberto Ghione

hope this helps
Wouter

[Parisa_Khiabani]

Dear wouter,
Thanks for your kind help.

Parisa

[jherb]

Also have a look at this thesis:
https://mediatum.ub.tum.de/node?id=1172612

[markusrehm]

Hi,

you could also check this:

http://www.cfd-online.com/Forums/ope...se-change.html

http://openfoamwiki.net/index.php/Co...haseChangeFoam

Please report your experience.

Markus

[mecman]

If you want use VOF method for simulation , you should make own solver and implement mass transfer model foe phase change
Best

[jameswilson620]

check this post out: http://www.cfd-online.com/Forums/mai...tml#post538055