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Merging overset with Isoadvector (overInterDyMFoam and interIsoFoam)

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Old   January 26, 2022, 18:44
Default Merging overset with Isoadvector (overInterDyMFoam and interIsoFoam)
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Juan Diego
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Hi,

I'm trying to merge overInterDyMFoam with interIsoFoam to have overset functionality while reducing numerical ventilation (smearing) in naval simulations (VoF).

I've compiled the attached overset solver using isoadvector instead of MULES, but when I run it I get air bubbles around the hull (picture attached) and the simulation crashes.

Any idea on what I'm doing wrong?

Thanks!
Juan
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File Type: jpeg overinterisofoam.jpeg (193.5 KB, 45 views)
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File Type: c overInterIsoFoamJD.C (9.1 KB, 11 views)
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Old   February 1, 2022, 03:26
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Paulin FERRO
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Hello,


Why the overset approach is required in your simulation ?


If the motion is limited, first, I would go with the standard mesh deformation method, MULES, and use the interfaceCompression boundary condition.


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Old   February 4, 2022, 11:23
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Juan Diego
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Hi Paulin,

Thanks for your reply!

I'm using morphing mesh with isoadvector and it works fine, but also overset meshes to simulate wider movements and manouvers.

I directly thought about trying isoadvector with overset mesh, but it hasn't worked out, at least yet

The interfaceCompression BC seems to me like less "real" but I'll give it a go and check the results.

Thanks!
Juan
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Old   February 4, 2022, 11:30
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Paulin FERRO
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ok.

Let me know if the interfaceCompression BC improves your results.

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Old   March 26, 2022, 04:16
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Berin 各ta
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Quote:
Originally Posted by juandeigo View Post
Hi,

I'm trying to merge overInterDyMFoam with interIsoFoam to have overset functionality while reducing numerical ventilation (smearing) in naval simulations (VoF).

I've compiled the attached overset solver using isoadvector instead of MULES, but when I run it I get air bubbles around the hull (picture attached) and the simulation crashes.

Any idea on what I'm doing wrong?

Thanks!
Juan
Hi Diego,

Have you been able to merge overInterDyMFoam with isoInterFoam?

Best regards,
Berin
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Old   March 27, 2022, 19:08
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Juan Diego
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Quote:
Originally Posted by Berin 各ta View Post
Hi Diego,

Have you been able to merge overInterDyMFoam with isoInterFoam?

Best regards,
Berin
Hi Berin, I didn't have much time to continue trying, but it's in my to-do list
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Old   March 29, 2022, 06:19
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Michael Alletto
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I think the challenge here is how to correctly transfer the information (orientation and position within a cell) of the indicator function between the grids.
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Old   May 19, 2022, 08:43
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ZJ SONG
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Hi juandeigo,

I've been doing this recently. Have you been able to merge overInterDyMFoam with InterIsoFoam? or any progress?

Best regards,
Souliam
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Old   June 5, 2022, 19:01
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Juan Diego
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Hi Souliam,
Not yet. I got a tip that the key is mass conservation, but I have to find the time to try again. What about you? Any success?
Juan
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Old   June 22, 2022, 23:36
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ZJ SONG
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Quote:
Originally Posted by juandeigo View Post
Hi Souliam,
Not yet. I got a tip that the key is mass conservation, but I have to find the time to try again. What about you? Any success?
Juan
Thanks!
Em... Before using interIsoFoam to modify geometricVoF, there is no problem. Then, trying to merge overinterdymfoam had fatal problems. It seems that there is no data exchange between background and overset (fig1). Also, my solver doesn't show the solve p-rgh prompt(fig2), I僧 trying to check or modify. Finally, have you adjusted the CorrectPhi.H file properly?
fig: https://www.jianguoyun.com/p/DRUY1FMQzZLaChjo_cgEIAA
https://www.jianguoyun.com/p/DXvZn88QzZLaChjw_cgEIAA
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Old   September 14, 2022, 08:48
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Jiayu Sun
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Are you guys still paying attention to the coupling of these two solvers?I would be grateful if you could provide me with some ideas or insights.
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interisofoam, isoadvector, overinterdymfoam, overset, smearing vof

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