Mixture of two elements in a bubble

edems86 · December 12, 2022, 06:35

Hello everyone,

I am new to OpenFOAM and working on my first project. The goal is to simulate the dynamic of a rising bubble (oil) in water.

I would like to specify that in the oil region, there are two chemical elements (acetronitrile and chlorobenzene) with their own volume fraction (0.48 and 0.52 resp.). The problem is, I have no idea how to do that. I have been searching on the Internet and on the OpenFOAM tutorials but I can not find any help.

Do you happen to know a test case using such a configuration or how to do that? I am using inerFoam, is it adapted for my project? A few people talk about a 'thermophysicalProperties' file but I do not know anything of this file.

Hope you will be able to help me out, thank you!

überschwupper · December 12, 2022, 08:47

interFoam isnt able to resolve the components inside your fluid. You need to use another solver for this purpose. The thermo library is able to do what you want.
Solvers which are using the thermo library in OF-Foundation (.org) versions are:
compressibleInterFoam
multiphaseEulerFoam

in ESI-Version (.com) there are some more:
same as above, but additionally
reactingTwoPhaseEulerFoam / reactingMultiPhaseEulerFoam

icoReactingMultiphaseInterFoam

December 12, 2022, 06:35	Mixture of two elements in a bubble	#1
edems86 New Member Elliott Join Date: Jul 2022 Posts: 4 Rep Power: 4	Hello everyone, I am new to OpenFOAM and working on my first project. The goal is to simulate the dynamic of a rising bubble (oil) in water. I would like to specify that in the oil region, there are two chemical elements (acetronitrile and chlorobenzene) with their own volume fraction (0.48 and 0.52 resp.). The problem is, I have no idea how to do that. I have been searching on the Internet and on the OpenFOAM tutorials but I can not find any help. Do you happen to know a test case using such a configuration or how to do that? I am using inerFoam, is it adapted for my project? A few people talk about a 'thermophysicalProperties' file but I do not know anything of this file. Hope you will be able to help me out, thank you!

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December 12, 2022, 08:47		#2
überschwupper Member Join Date: Jan 2022 Location: Germany Posts: 72 Rep Power: 4	interFoam isnt able to resolve the components inside your fluid. You need to use another solver for this purpose. The thermo library is able to do what you want. Solvers which are using the thermo library in OF-Foundation (.org) versions are: compressibleInterFoam multiphaseEulerFoam in ESI-Version (.com) there are some more: same as above, but additionally reactingTwoPhaseEulerFoam / reactingMultiPhaseEulerFoam icoReactingMultiphaseInterFoam