|December 19, 2013, 03:42||
Please**need help on Tow phase flow ( water & steam water) analysis**
Join Date: Dec 2013
Posts: 4Rep Power: 3
i want to model a cylindrical porous domain which has inlet at the bottom and outlet at top. porous has heat generation which make some water to become vapor. i modeled it as follow:
1- I defined one continuous fluid as water and one dispersed fluid as water steam ( bubble size 0.002 m) with IPWS F97 mat properties.
2- use of mixture model without free surface model
3- thermal energy
4- particle model
5- thermal phase change with saturation temperature
6- two resistance , zero resistance and ranze marshal models have been implemented.
i try to run this problem for 1.014 bar domain pressure with 100 C saturation temperature which was successfuland two phase flow is performed.
MY PROBLEM : BUT when i want to run it for higher pressure like 55 bar with 270 C saturation temperature, water don't become two phase and water temperature increases more than saturation temperature without phase change.
what should i do please help me.
|December 19, 2013, 17:15||
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,127Rep Power: 79
Have you covered the basics? http://www.cfd-online.com/Wiki/Ansys..._inaccurate.3F
|cfx, evaporation, multi phase, water steam|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Mass Flow rate in spray water modeling||Behnam Ghadimi||Main CFD Forum||0||June 8, 2013 15:48|
|Divergence after change in mass flow rate in two phase flow||meetsunilkale||FLUENT||1||March 25, 2013 04:03|
|mass flow in is not equal to mass flow out||saii||CFX||2||September 18, 2009 08:07|
|tow phase flow in 180 degree bend||akbar||FLUENT||0||January 28, 2004 16:52|
|phase change water to steam||Tej||FLUENT||0||March 25, 2003 00:21|