Abstract
This study proposes a new seal design to reduce the leakage in turbomachines. On the basis of the conventional labyrinth seal, two vertical blocking walls are added on the rotor, and one horizontal blocking wall is added on the upstream seal tooth and downstream seal tooth. In the new seal, a tortuous flow path is generated, and many vortexes appear. The new seal increases the resistance to the leakage fluid and kinetic energy dissipation. After the comparison of the leakage between the specially designed new seal and conventional labyrinth seal, it can be found that the specially designed new seal yields a reduction in the leakage of 42.7~43.6%.
Published Version
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