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what value to give coeffC and coeffE in phaseChangePRoperties? |
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#1 |
New Member
Vignesh S P
Join Date: Jul 2018
Location: Coimbatore, Tamil Nadu, India
Posts: 17
Rep Power: 8 ![]() |
Hi,
Am trying to simulate evaporation and condensation of pentane inside a heat pipe. The solver I've selected is interCondensatingEvaporatingFoam in OpenFOAM v1906 by ESI. I took tutorial case for that solver all the transport properties are given for both phases. But there is a file called phaseChangeProperites Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: v1812 | | \\ / A nd | Web: www.OpenFOAM.com | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; object phaseChangeProperties; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // phaseChangeTwoPhaseModel constant; constantCoeffs { coeffC coeffC [0 0 -1 -1 0 0 0] 250; // for FC-72 coeffE coeffE [0 0 -1 -1 0 0 0] 250; } i want what value to be fed into each coeff. for pentane. or how to determine these coeffc. Thanks in advance. |
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#2 |
New Member
Muyiwa
Join Date: Feb 2020
Posts: 12
Rep Power: 6 ![]() |
I'm a new user of OpenFoam and I need tutorial case of interCondensatingEvaporatingFoam solver to practice. Please kindly help me send the tutorial case in zipped format for interCondensatingEvaporatingFoam solver. Thanks for your good response.
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#3 |
New Member
Join Date: Sep 2021
Posts: 8
Rep Power: 5 ![]() |
Hi Vignesh and everyone,
I am actually looking for a solver which calculated the interfacial area density, which seems to be present in the 2006 version of OF esi. I checked the source terms, and again it has similar CoeffE and CoeffC. It is not clear to me how to access the interface area density and what these coefficients are. Did you understand the coefficients? It would be of great help if you direct me to the relevant sources. Thanks in advance for your time. |
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#4 |
New Member
Filippo Azzini
Join Date: Apr 2020
Posts: 10
Rep Power: 6 ![]() |
Dear Vignesh,
I'm also tryng to simulate heat pipes with this solver, but i have some problems to set-up my simulation, i'm asking if you had managed to simulate the evaporation and condensation cycles with this solver, thank you so much for your help |
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#5 |
New Member
Join Date: Jun 2023
Posts: 5
Rep Power: 3 ![]() |
Hello, were you able to progress using interCondensatingEvaporatingFoam? I am also looking at a similar problem, modeling thermosyphons.
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Tags |
phase change |
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