Proceedings of asme turbo expo 2002 june 36, 2002, amsterdam, the netherlands gt200230348 simulation of the interaction of labyrinth seal leakage flow and. Preliminary calculation of the seal cavity averaged pressure by using the onedimensional control volume method showed favorable agreement with the experimental measurements. Preliminary calculation of the seal cavity averaged pressure by using. Leakage and cavity shape studies of labyrinth seals. Discharge flow coefficient for straight labyrinth seal teeth on the. Preliminary calculation of the sealcavity averaged pressure by using.
A seal is a component used in a turbomachine to reduce internal leakage of the working fluid and to increase the machines efficiency. Cavity pressures, velocity and leakage computation in. Numerical analysis of leakage flow through two labyrinth. Particularly annular seals are one of the most widely used in. He was able to show how much the flow pattern in the labyrinth seal is affected by the ratio of the axial leakage velocity to the shaft peripheral speed. Abstract labyrinth seals are a noncontacting sealing device consists of a series of cavities connected by small clearances. A theoretical model for the design of a labyrinth seal gland. Although the methods available for estimating labyrinth seal leakage and calculating the pressures are numerous, each is based on certain simplifying assumptions which. In 2011, with a non rotating shaft, seal flow rate measurements with increasing inlet air temperatures to 300c show the halotm seal leaks 50% or less than the labyrinth seal.
1265 461 284 1092 742 1486 1257 1056 1043 1357 902 1665 442 185 1062 983 150 396 1344 483 1044 220 858 1508 1561 1082 1617 102 1399 583 233 1272 1046 1164 828 673 1329