[annan]

Dear all,

I am working on the simulation of a simple case using the VOF model with 2 phases. I have also implemented a UDS in order to follow the concentration change, But now I have to change the advectif flux to take into consideration what happens at the interface between the 2 phases.
For this reason, I have written a UDF using DEFINE_UDS_FLUX, which depends on the volume fraction gradient (C_VOF_G), but my simulation would not work, I get a segmentation fault.
I first thought the problem comes from the storage of the volume fraction gradient, but even though I defined a UDM it is still not working ... Can someone help me figure out the problem please ?
I can provide the code if needed

Thank you in advance

[xiatt]

Originally Posted by annan

Dear all,

I am working on the simulation of a simple case using the VOF model with 2 phases. I have also implemented a UDS in order to follow the concentration change, But now I have to change the advectif flux to take into consideration what happens at the interface between the 2 phases.
For this reason, I have written a UDF using DEFINE_UDS_FLUX, which depends on the volume fraction gradient (C_VOF_G), but my simulation would not work, I get a segmentation fault.
I first thought the problem comes from the storage of the volume fraction gradient, but even though I defined a UDM it is still not working ... Can someone help me figure out the problem please ?
I can provide the code if needed

Thank you in advance

Hi annan,
I have the same proble with you. can you solve the problem now? Please help me. Thank you in advance.

[annan]

Hi Xiatt,
Could you describe your problem please ?
Are you also trying to change the UDS flux with an expression which depends on the VOf gradient ?
Regards