... rotors seals (stoppers) pressure measurement flow measurement gas turbines conservation laws aerodynamics compressible flow force flow instability Turbines can be broadly classified into shrouded and unshrouded turbines. Shrouded turbines have seals at rotor tips and/or stator hubs...

... of ring radial motion relative to the cylinder bore. The MOFT calculation for a ring is based on the radial force balance given by Eq. ( 1 ). Figure 5 shows the values of MOFT from simulations of all three rings at an engine speed of 4000 rpm. 5 MOFT values for the ring-pack at 4000 rpm...

... and computational fluid dynamics (CFD) have addressed the first two areas, the lack of accurate prediction tools for centrifugal impellers typically leaves rotordynamics out of the design loop. While several authors have analyzed the rotordynamic forces arising from shrouded centrifugal impellers, there has been...