Global Power and Propulsion (GPPS): Montreal18 - Proceedings
Published May 7, 2018 | Version v1
Conference paper Open

A Parametric Study on the Aeroelastic Stability of Rotor Seals

Creators

  • 1. Siemens Industrial Turbomachinery AB, Sweden
  • 2. Siemens Energy, Inc. USA

Description

Labyrinth seals are widely used in rotating machinery and can be prone to aeroelastic instabilities. The rapid development of computational fluid dynamics now provides a hight fidelity approach for predicting the aeroelastic behaviour of labyrinth seals in theres dimension and exhibits great potential within industrial application, especially during the detailed design stages. In the current publication a time marching unsteady Reynolds-averaged Navier-Stokes solver was employed to study the various historically identified parameters that have essentially influence on the stability of labyrinth seals.

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Additional details

References

  • Abbott D. R. (1980). Advances in Labyrinth Seal Aeroelastic Instability Prediction and Prevention. ASME Paper No. 80-GT-151
  • Alford J. S. (1964). Protection of Labyrinth Seals from Flexural Vibration. ASME J. of Eng. for Power, Vol. 86, 1964, pp. 141-147
  • Alford J. S. (1967). Protecting Turbomachinery from Unstable and Oscillatory Flows. ASME J. of Eng. for Power, Vol. 89, 1967, pp. 513-527
  • Alford J. S. (1975). Nature, Causes, and Prevention of Labyrinth Air Seal Failures. AIAA J. of Aircraft, Vol. 12, 1975, pp. 313-318