[balav94]

Hi everyone!

I am working on a premixed combustion problem using the 'Species transport' Combustion model in Fluent. I realized that the available pressure outlet BC in Fluent does not work well for my problem, since using this leads to really high maximum pressure prediction at a point close to the outlet (pressure time history is used to compare with the experimental results). I have checked all other BCs.

So, in order to tackle this, I found that a PLANE WAVE or 1D wave equation for pressure might work, based on an extensive Literature survey. However, I am a beginner at writing UDFs and wasn't able to find any examples as such in the Fluent UDF guide.

So, it would be really nice if someone could guide me to how to write a UDF for a PLANE WAVE/Convective BC for pressure at Outlet. In case someone has already written a similar UDF and is willing to share, that would also be great.

Thanks in advance!