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OpenFoam solver for water droplet injection into airflow |
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#1 |
New Member
Lennart
Join Date: May 2022
Posts: 14
Rep Power: 2 ![]() |
Hi,
I am looking for a suitable OpenFoam solver for the following problem: A body is moving through air with a fixed velocity. At a certain location of its surface, water droplets are injected into the surrounding airflow through a nozzle. The main goal is to analyze the droplets' effect on the flow field around the body including the following phenomena: - heat exchange between water and air - evaporation of droplets due to high airflow velocity and low pressure During the analysis I would like to examine the influence of the following parameters: - water pressure at the nozzle - water flow rate - water droplet size The exact paths of the injected droplets are NOT important to me. First, I thought about using one of the multi-phase solvers (like multiphaseEulerFoam), however here I could not find an option to simulate different droplet sizes. Therefore, I think I might have to use a particle tracking solver, but I would appreciate your opinions on this, as well as recommendations on where to find a similar case I can use as a starting point. Best regards, Lennart |
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#2 |
New Member
Join Date: May 2022
Posts: 1
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I am looking for the same thing as you, do you have any solution? Can you share it with me?
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#3 |
New Member
Lennart
Join Date: May 2022
Posts: 14
Rep Power: 2 ![]() |
Hi jihouni,
By now, I have come to the conclusion that if you want to simulate different droplet sizes with a multiphase solver you need a mesh that is extremely fine in order to represent the single droplets with the mesh cells. That is why I believe it is a lot more efficient to do particle tracking in this case. If you are looking for a similar case to start with, I recommend the OpenFOAM tutorials lagrangian/reactingParcelFoam/filter and lagrangian/reactingParcelFoam/verticalChannelLTS. |
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#4 |
New Member
Lennart
Join Date: May 2022
Posts: 14
Rep Power: 2 ![]() |
Edit:
I have found out that there is indeed an option for simulating different droplet sizes in the constant/phaseProperties dictionary of the multiPhaseEulerFoam solver. |
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Tags |
droplet, evaporation, lagrangian, multi-phase, solver |
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