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- W2390528550 abstract "Partial admission is an important characteristic of the control stage.The leakage flow in the seals around rotor blade interacts with the main flow in the control stage,which influences not only its aerodynamic performance and efficiency,but also has effect on unit safety.Based on 3D viscous compressible Navier-Stokes equations,the full-circle fluid model with seal devices was established,and the inner flow structures under multiple working conditions were numerical studied.The rotor cascade located in the admission arcs shows great flux and torque,and the flow is comparatively stable.The steam flows from the leading edge to the downstream sections in the seal device in the admission arcs.While the inner flow of the steam appears sluggish in the block channel of the rotor cascades.The flux and torque in this part are comparatively low and even with a negative value,which shows that much more losses of blast and arc exist in this part.The flow direction in the seal device in the block channel is opposite with that in admission arcs.With the decrease of partial admission ratios,leakage flux proportion increases gradually and the wheel efficiency decreases evidently." @default.
- W2390528550 created "2016-06-24" @default.
- W2390528550 creator A5057173938 @default.
- W2390528550 date "2013-01-01" @default.
- W2390528550 modified "2023-09-28" @default.
- W2390528550 title "Numerical study on three-dimensional flow in control stage of steam turbine under multiple working conditions considering leakage flows in seals" @default.
- W2390528550 hasPublicationYear "2013" @default.
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