3、数值模拟;流量系数 【Abstract】Itestablishedinternal3Dflowfieldofcontrolvalve.Thenumericalsimulationofcontrol valvewasaccomplishedwiththecommonsoftwareFluent.Bycomparingsimulationvalueandtheoretical valueofflowcoefficient,itisprovedthatFluentiseffectiveintheflowfieldsimulatingofcontrolvalve.It c