[lost.identity]

Hi,

I've just run a simulation of a converging-diverging nozzle using CFX. I pretty much left the Solver Control options as default (i.e. High resolution advection scheme, Autotimescale, Continuity Equation class.)

The problem is in my results the temperature is a constant value. However I can see that the static pressures and the velocities are changing in the nozzle, and they look physical.

Does anyone have any ideas why the temperature is constant? (it should physically change quite a bit in my nozzle)

One thing I need to mention is that the Mach numbers upstream of the nozzle is very low (about 0.03). How does CFX deal with such low Mach numbers? And the maximum Mach number in the throat reaches 1.3.