VOF user coding
 

hi all i am doing the damp break problem using VOF in star-CD 3.26, i want to keep track of the interface is there any way that i can capture cell coordinates where the interface is there. i have an idea of writing a user coding using posdat.f like print all the cell cordinates for each time where VOF is greater than 0 and less than 1, the difficulty i am facing here is i don't know, with what variable i will be able to access these parameters like the Scalar concentration (VOF) and the corresponding XY coordinates of the cell. please some one help in this regard.

T.Sriramakrishna

Re: VOF user coding
 

You can use post shell create (help pscr) to put shells on an iso-surface.

Have a macro step through the pstt file. Create a new shell type for each time step.

Dear Ramki and pauli

I am also dealing with a problem with Star-CD, about the impact of droplet on a surface.
Scalar (1) =Air
Scalar (2) =Water

Indeed, I am going to compare of Scalar (2) at each time step and put the bigger value instead of the lower one.
i have a difficulty to set these kind of subroutine.

Phase source as a user coding (direct: Thermophysical model and properties—Source Terms—Scalar— User coding).

I would be appreciated if could help me to that what kind of function as user coding would be suitable in this condition.

Thank you very much in advance.