Volume of fluid -- CFD Online Discussion Forums

September 23, 2016, 11:30	Volume of fluid	#1
mahdypars New Member Mehdi Join Date: Jul 2016 Posts: 6 Rep Power: 10	Hi every body i tried to simulate a wave generating flume. there is a rectangular box at the middle and it is just free to heave (go up and down). i have a problem after 100sec simulation. the volume fraction increase slowly and never decrease. also the box goes up and up... what is the problem? is the mesh not fine enough ? please help me at the outlet, i checked the tick: "allow fluid to enter at boundary" and used: one fluid free surface

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