Openfoam bodyforce

skbake94 · February 21, 2024, 07:49

Hi guys, I am doing a research in a different field but I wanted to connect my research topic to CFD so I recently started learning to use openFoam. I have been trying to reproduce a simulation from a journal and have figured out about most of the settings of the simulation I want to do but this simulation has sin(4y) to x direction as a source term. How can I implement this bodyforce into either simpleFoam or pimpleFoam?

Thanks,

Severus · February 22, 2024, 17:52

Hello,
You will need to use fvOptions

And probably for the type of force that you have mentioned (a sinusoidal forcing varying spatially), this will be useful to you:
https://www.openfoam.com/documentati...ces-coded.html
See the description on implementation here:
https://www.openfoam.com/documentati...8H_source.html

Finally, I also think this thread might be of help
How to add a body force to a momentum equation
And for an example, see this answer in the same thread

Hope this serves as a starting point for you

Good luck!

February 21, 2024, 07:49	Openfoam bodyforce	#1
skbake94 New Member Sangkyu Baek Join Date: Feb 2024 Posts: 1 Rep Power: 0	Hi guys, I am doing a research in a different field but I wanted to connect my research topic to CFD so I recently started learning to use openFoam. I have been trying to reproduce a simulation from a journal and have figured out about most of the settings of the simulation I want to do but this simulation has sin(4y) to x direction as a source term. How can I implement this bodyforce into either simpleFoam or pimpleFoam? Thanks,

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February 22, 2024, 17:52		#2
Severus Member Shravan Join Date: Mar 2017 Posts: 60 Rep Power: 9	Hello, You will need to use fvOptions And probably for the type of force that you have mentioned (a sinusoidal forcing varying spatially), this will be useful to you: https://www.openfoam.com/documentati...ces-coded.html See the description on implementation here: https://www.openfoam.com/documentati...8H_source.html Finally, I also think this thread might be of help How to add a body force to a momentum equation And for an example, see this answer in the same thread Hope this serves as a starting point for you Good luck!