Doubt - while running iteration, plz help
 

Hi All

iam solving the heat transfer flow in spiral fluted tube, i have a doubt like while running iteration the messege is displaying as " turbulent viscosity limited to viscosity ratio of 1.000000e+05 in ----cells, the --- indicates the number of cells. its continously displaying with increasing number of cells.

I dont know what the error is, is that becose my boundary condition are not properly set up or is that related to mesh. plz help with this matter, any suggestion are highly appreciated thanks in advance