I am attempting to model warm water exiting a pipe and flowing into a large body of water, ie sea, lake or river, on Star CCM+. I am doing this to analyse hot the temperature disperses in the body of water. I have never used Star CCM+ before and do not know the best way to model this scenario. I have been able to model water flowing within a pipe but am unsure how to model the water actually flowing out of a pipe and into a larger volume of water. Could anyone advise on what I could do?