Lateral Forces From Single Gland Rotor Labyrinth Seals in Turbines

摘要: Even though interest in labyrinth seal flows has increased recently, an analytical model capable of predicting turbine flow response to seals is still lacking. Therefore, this paper presents a new predict axial stage with shrouded rotor. A concentric first developed, and used develop eccentric model. Basic conservation laws are each model, nonaxisymmetric sealing gap prescribed for the Thus, two models can evolution uniform upstream into nonuniform downstream flow. In turbines rotors, retarded direction tangentially underturned. azimuthally migrates away from pressure reaches its peak near maximum region. Finally, rotordynamic implications such nonuniformities discussed compared against unshrouded predictions.