CFD Online Discussion Forums

CFD Online Discussion Forums (
-   ANSYS (
-   -   O2 mass fraction in water (

vinaynitrkl May 8, 2010 00:16

O2 mass fraction in water
At normal temp and pressure, does fluent assume dissolved oxygen content in water to be 7 ppm?
or if not what is the correct value?
and how to assign a new value?

vinaynitrkl May 8, 2010 13:46

nobody ther to answer???

vinaynitrkl May 9, 2010 01:58

this is demoralizing ...3 days and no answer!
of course someone must be knowing the answer...but nobody cares to post!

Simon Hans August 3, 2010 10:43

Use a Henry coefficient (for O2 this is about 45000 bar at 25oC). It relates the partial O2 pressure in the gas phase to the mole fraction in water: Pi = H*x.

Does this help?

All times are GMT -4. The time now is 20:15.