VOLUME OF FLUID

Nial Horton

Dear friend, I am investigating the use of the Volume of fluid method for the simulation of the free surface of flow in a shallow open channel. I have been able to seperate the vel. inlet into two parts to give myself an initial air inlet and then a water inlet at the bottom and am using the PISO function so that the under relaxation factors can be set to one. However, I am having great difficulty in gettin my solution to converge and have found that I am not sure what time step settings to enter.

In this way, any advice or hints that you could give would be greatly appreciated.

Thanks