CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   CFX (https://www.cfd-online.com/Forums/cfx/)
-   -   modeling an expansion near the critical point (https://www.cfd-online.com/Forums/cfx/178567-modeling-expansion-near-critical-point.html)

alirezame October 11, 2016 06:40

modeling an expansion near the critical point
 
Hello guys,

I'm modeling an expansion near the critical point of CO2 (non-equilibrium). Flow properties cross the critical point and as you know, below the critical point, there is no spinodal curve or meta stable region. please see the attached figure.
the flow passes the spinodal curves and CFX automatically clips to a curve between the spinodal and saturation curves. So, the question is:
How we can asses the condensation in that area when it clips! I wanna say if even condensation happens or not and how much our super-cooling degree is. (case is a centrifugal compressor and near the suction side of the blade we have expansion.)

https://i.imgsafe.org/cc2307b315.png


All times are GMT -4. The time now is 04:34.