Learning Forum

[pv00170]

I am using a multiphase simulation (water and air), and velocity contours are given for the mixture (as the program shares verlocity between their cells). As far I am concerned, there is no way for getting a velocity contour of only one of those materials, and therefore I thought if I can define an expression which multiplies density with velocity. 

As an example: I want to see only the water velocity, and I define the expression as:

( Cell velocity * Cell density ) / Density of water

Doing so, I will get the same velocity for those cells wich are completely water, something weird for the interface (is okay) and 0 velocity for those cells wherein theres air since:

water ( 1 m/s * 998.2) / 998.2 = 1 m/s

air      ( 1 m/s * 1.225 ) / 998.2 = 0 m/s

This way I could see only the velocity of the material that I am interested in.

[Murari Iyengar]

You can plot contours of Named Expressions. Under Contours Of, select Expressions and then select the desired Expression.

[pv00170]

Thank you Murari, it worked!

PS: Before I was trying to define it in Report Definition rather than Named expressions.