[EMANI ROHIT]

I am doing fluent analysis on heat transfer through rectangular winglet type vortex generator, Ihave tried all sorts of changes in the URF, temperature limits and also decreased the inlet velocity, but the error is appearing while calculation.
I have used cell zone condition for the fin-winglet model as interior and given its temperature as 350K.
For Boundary conditions for velocity inlet I used Specification method as K and epsilon. And for pressure outlet the specification method is same. Given velocity magnitude as 0.5 m/s.
How to slove this?.