Hello,
I'm trying to condensate steam along a duct.
I've read that FlowSimultiation allows only mass fraction of condensate not greater than 5%, so i've imposed boundary condition to not overcome this limit.
My BC are:
- Inlet mass flow rate = 1.676 * 10^(-3) kg/s
- Static pressure Outlet = 5 bar
- T inlet = 425 K
- Duct Lenght = 0.8 meters
- Duct Diameter = 0.02 meters
- Thermal flux = - 5 watt (surface surce)
The analysis have no problem to converge, but there is something i can't understand:
The values of total temperature and total pressure on outlet surface are zero.
The internal surface of the duct is equally divided in two part and the heat exchange takes place only in the second part; the first one is adiabatic.
The velocity and static pressure profile seem correct compared to the standard profile in a tube.
The next picture shows the results of a cutplot plotting total pressure.
Is there something that I'm wrong?
Is there something in fluid-dynamic theory that i've forgot?
Thanks for the answers
Greetings
Simone
can you double check that your min and max are set to the min and max for the plot.
also what are the surface parameters reading at the inlet and outlet. assume you've checked that mass flow in and out match?
if you turn off all the fancy stuff like humidity..etc does it work any better?
does your plot of static pressure look better than total pressure? (is there a reason why you are plotting total pressure?)