|
[Sponsors] |
September 24, 2001, 11:02 |
phase distribution in a bio reactor
|
#1 |
Guest
Posts: n/a
|
Hi everybody, I have to write a c code for the phase distribution in a bio reactor. So far I have the Navier-Stokes for pressure and velocity field. But what can calculate my phase distribution? I would be delighted for any suggestions. Thanks in advance, Stefan
|
|
September 24, 2001, 11:22 |
Re: phase distribution in a bio reactor
|
#2 |
Guest
Posts: n/a
|
Would you describe more detail about your phase distribution? My research area is multi-phase fluid flow, so I may have interest in your field.
What are governing equations for the phase distribution in a bio reactor? Junseok Kim |
|
September 24, 2001, 11:50 |
Re: phase distribution in a bio reactor
|
#3 |
Guest
Posts: n/a
|
Hello Mr. J. Kim,
thanks for your answer. The bio reactor is filled with water. From holes the bottom come air bubbles and also some small solid particles with a diameter of some millimeters exist in the reactor. The reactor is a cylinder of 40cm in diameter and 5m in height. I transformed the Navier-Stokes equations to cylinder coordinates and redused it to a two dimensional form. I planned to let the continuity equation approximate a unit pressure field. This field I want to use in the momentum balance equations of each phase to calculate the velocities in an inner loop. Each equation needs a factor (between 0 and 1), which determines the volume fraction of the phase in the computational cell. I guess, in my plan an outer loop is missing, which calculates these volume fractions and I have no idea of the equation, which can handle this problem. Further I want to discretize the equations using finite volume differences, but I am still fighting with the integral law of Gauss to transform the volume integral into a surface intagral, because I never did a disretization in cylinder coordinates. Thanks for thinking in my problem. Regards, Stefan |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
alphaEqn.H in twoPhaseEulerFoam | cheng1988sjtu | OpenFOAM Bugs | 15 | May 1, 2016 17:12 |
VOF for single phase? | vuccj7 | FLUENT | 0 | April 20, 2011 20:59 |
two Phase column simulation | chemeng | OpenFOAM | 3 | August 18, 2010 13:53 |
Three phase simulation of airlift reactor | Idtisak | CFX | 0 | February 22, 2008 11:05 |
compressible two phase flow in CFX4.4 | youngan | CFX | 0 | July 2, 2003 00:32 |