unable to converge a simulation of a sootblower
 

i want to model a soot blower (2D) that has a lance(tube) with 22 nozzle.
steam has been imported with 1.5 kg per second and 22 nozzle eject it to atmosphere
i have amount of pressure at the inlet but i choose mass-flow- rate


results do not converge ,
and i have reverse flow on several outlet that are near by inlet

please tell me what is the problem and what i should to do for obtain good results and converge data

---- URGENT