|December 19, 2013, 03:42||
Please**need help on Tow phase flow ( water & steam water) analysis**
Join Date: Dec 2013
Posts: 4Rep Power: 4
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: 12,832Rep Power: 100
Have you covered the basics? http://www.cfd-online.com/Wiki/Ansys..._inaccurate.3F
|cfx, evaporation, multi phase, water steam|
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