The aerodynamic pressure distributi

The aerodynamic pressure distribution upon the surfaces of acentrifugal compressor impeller leads to an axial forceimbalance. Accurate prediction of the axial thrust is importantand decisive during the pre-design procedure of an integralgeared compressor machine. Indeed, the thrust bearings selectiondepends on the magnitude of the axial thrust. On the other hand,an inaccurate estimation of the axial thrust value could have aserious negative impact on the mechanical and aerodynamicbehavior of the centrifugal compressor unit.