Influence of Gas Condensability on Labyrinth Seal's Sealability

Abstract:

Labyrinth seals are widely used in rotating fluid machinery, due to its simplicity, low-cost and reliability. In this paper, the effect of cavities on leakage loss in straight-through labyrinth seals are studied by changing gas condensability. The fluid flow characteristics through straight-through labyrinth seals are obtained by using viscous flow analysis along with a RNG k-ε turbulence model. The numerical calculation and various gas pressure is that leakage of compressible gas is greater than that of incompressible gas. The result is investigated by the heating effect of labyrinth seal and density characteristics of compressible gas.

• Periodical: Applied Mechanics and Materials (Volume 575)
• Pages: 355-362
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.575.355
• Online since: June 2014
• Authors: Jie Jiang*, Yi Yong Yang, Yong Jian Li, Wei Feng Huang
• Keywords: Density, Gas Condensability, Heating Effect, Labyrinth Seal

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