Visualisation problem pls help!
 

Hello, I am trying to simulate a toilet flush flow using fluent. I have managed to simulate the flush from 0 up to 15 seconds using VOF and everything seemed right. However I am having trouble visualizing the VOF for the post-process. I am simply trying to obtain a video showing the flow of the flush, however the fraction of VOF I use (0.5) doesn't show all the water flow. If I use a lower fraction, it shows a mixture of air and water. I only need a clear image to distinguish air with water. Could anyone help me with this issue?

The settings I have used are as follows.

3 phase VOF (water pressure, water interior volume and air interior volume), Implicit, Open channel flow, 0 Gauge pressure for air inlet and outlet, PISO and Body force weighted.

Thank you

Re: Visualisation problem pls help!
 

Hi, when you display the results, did you try to check the "clip to range" option? You could clip your visualization from 1 to 1 for example to only see the water. I hope I was clear. Good luck!

Re: Visualisation problem pls help!
 

Thank you for your response, I have tried to clip the visualization from 1-1, however nothing appears at the display (except the grid geometry). I´ve tried contour display with VOF of the water phase and filled the cells, Is this the right configuration?

Thank you again

Hey, I have similar problem now. In my simulation of water tank(inlet from upside and outlet from bottom) I dont find clear difference between water and air. It all mixes. Plz reply thnx