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Abstract
This paper presents experimental investigations which made it possible to determine dynamic coefficients of labyrinth over-shroud seal of a model air turbine. The coefficients associate pressure forces with turbine rotor displacement, velocity and acceleration respective to turbine casing (linear model) and play important role in analyzing turbine-set dynamics. The obtained results indicated that involving serious errors can be expected in the case of application of the simplification consisting in neglecting inertia coefficients, proposed in the literature. It was simultaneously demonstrated that seals can be also met of weak damping qualities, for which to neglect damping coefficients is allowable.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/v10012-008-0048-y
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Polish Maritime Research
pages 70 - 73,
ISSN: 1233-2585 - Language:
- English
- Publication year:
- 2009
- Bibliographic description:
- Włodarski W., Kosowski K.: On the modelling of aerodynamic force coefficients for over-shroud seals of turbine stages// Polish Maritime Research. -, iss. S1 (2009), s.70-73
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/v10012-008-0048-y
- Verified by:
- Gdańsk University of Technology
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