%0 Journal Article %A Piller, Marzio %A Mencinger, Jure %A Schena, Gianni %A Belardi, Girolamo %D 2017 %I Begell House %K CFD, hydrodynamics, two-phase flow, DynaWhirlpool %N 1 %P 41-64 %R 10.1615/InterJFluidMechRes.2017016140 %T TWO-PHASE FLOW FIELD IN A CYLINDRICAL HYDROCYCLONE WITH TANGENTIAL DISCHARGE %U https://www.dl.begellhouse.com/journals/71cb29ca5b40f8f8,340d13576272503a,5d3ac9491c889678.html %V 44 %X The two-phase, air-water flow pattern in a DynaWhirlpool-type centrifugal separator is investigated using time-dependent, three-dimensional numerical simulation. The air-water interface is captured by the volume-of-fluid approach, while the unresolved turbulence fluctuations are modeled via a second-order differential-stress turbulence model. The methodology is validated with available laser-Doppler data acquired on a similar separation device. The velocity field within the cyclone is thoroughly characterized for a single operating condition, revealing the presence of a stable air core that flows axially faster than the surrounding water. %8 2017-04-18