Proposals for Improving the Efficiency and Durability of the Turbines of Turbo-Pump Assemblies in Liquid-Propellant Rocket Engines by Using Double-Sided Crest-Type Radial Labyrinth Seals

Vasiliev, V. S.; Levochkin, Petr; Chvanov, Vladimir; Timushev, S.F.

doi:10.1088/1757-899x/491/1/012018

Cited by 2 publications

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Analysis of the geometric parameters influence on the labyrinth seals performance

Androsovich

Borovikov

Siluyanova

2021

J. Phys.: Conf. Ser.

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One of the ways to improve the modern gas turbine engines efficiency is to increase the efficiency of its components. An increase in the gas turbine engine components efficiency may be achieved by reducing air leaks by the seals usage. It is possible to achieve a reduction in air consumption through the seal, including off-design operation conditions, by using modern methods of computational fluid dynamics simulations. One of the possibilities of modern computational fluid dynamics methods is to analyze a simultaneous effect of the large number of variable design parameters. Performance of different labyrinth seals type is analyzed. Direct-flow labyrinth seal is chosen as most common in jet engine design due to its properties. Geometric parameters influences are defined. Optimization resulted in a labyrinth seal configuration that achieves a 20% reduction in seal mass flow. A comparison of the mass flow characteristics of the original and the optimized seal showed that the optimized seal provides reduced mass flow over a wide range of pressure ratios. The results obtained lead to the conclusion about geometric parameters influence on the mass flow and the effectiveness of labyrinth seals optimization to reduce air leaks.

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Analysis of the geometric parameters influence on the labyrinth seals performance

Androsovich

Borovikov

Siluyanova

2021

J. Phys.: Conf. Ser.

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Comparison of the Dynamic Characteristics of Electric Pump and Pressure-fed Systems for Space Engines

Zhou

Wang

et al. 2022

2022 13th International Conference on Mechanical and Aerospace Engineering (ICMAE)

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Proposals for Improving the Efficiency and Durability of the Turbines of Turbo-Pump Assemblies in Liquid-Propellant Rocket Engines by Using Double-Sided Crest-Type Radial Labyrinth Seals

Cited by 2 publications

References 0 publications

Analysis of the geometric parameters influence on the labyrinth seals performance

Analysis of the geometric parameters influence on the labyrinth seals performance

Comparison of the Dynamic Characteristics of Electric Pump and Pressure-fed Systems for Space Engines

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