I suspect I know the reason: been there, made the same mistake. What is the operating density that you’ve set, what is the air density definition and please post a velocity vector plot (in plane) same surface as the others.
Nice to see someone modelling the baby fans, if fed properly they can grow... https://www.lngindustry.com/magazine/lng-industry/march-2011/
You are navigating away from the AIS Discovery experience