thank you for your answer.nI have followed the workshop and got close to what I wanted however I think there are a couple of issues still and I would like some help with them if possible.nWhen looking at the total deformation of the bodies it looks like the fluids move separately to the tank body and come out of the top of it as shown in the picture below. I want the fluids to be within the tank and move with it, do you know how I can do this? I have tried adding contact bodies but so far this has not worked - the version in the picture below uses no contact bodies as specified in the workshop. nThanks once again. nn