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Flwo velocity near wall not zero

Question asked by Ali Moslemi on Feb 28, 2019
Latest reply on Feb 28, 2019 by Ali Moslemi


I am running a flow simulation in which a nozzle ejects flow into a water tank. When, I examine the velocity near the nozzle exit ID wall, the velocity is not zero and is considerably high. I have to go about one cell inside the nozzle to find zero velocity near the wall. Can anybody comment why I see this? based on zero slip boundary condition, the flow velocity near wall should be zero. I've attached a picture of near wall mesh cells.