I am attempting to simulate a jet emerging from a needle using the EHDFoam, an interFoam-based solver in OpenFOAM. However, I've encountered an issue where the interface stops moving after a certain point, and only minute wave-like propagations occur at the interface. The fluid used is PEG-200, with an injection velocity of 0.01 m/s and a needle radius of 0.000075 m.

Has anyone experienced similar issues, or can you provide insights into why this might be happening and how to resolve it?

I have attached FvSchemes and FvSolutions files I am using.

I appreciate your help!