Experimental study on leakage flow in labyrinth seals with asymmetric geometries

Kazufumi Nishii; Akinori Furukawa; Satoshi Watanabe; Kunihiro Miyake

doi:10.1063/1.3464944

Experimental study on leakage flow in labyrinth seals with asymmetric geometries

Kazufumi Nishii, Akinori Furukawa, Satoshi Watanabe, Kunihiro Miyake

Fluids Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

The labyrinth seal is one of non-contact seals, which is used as a seal device of rotary machines from reasons of the lubrication free and small losses. So far, many researchers have investigated the characteristics and suitable geometries of labyrinth seals, though only one directional flow of the seal has been focused up to now. As flow direction in the seal becomes changeable depending on the gas-purge system and the inner pressure variation of machines for recent applications, a guideline of designing labyrinth seal with changeable flow directions is required. In the present report, effects of seal characteristics and internal flow behaviors on various shapes of asymmetric convexity in labyrinth seals are experimentally investigated and relations between pressure loss and convexity geometries are discussed for designing a suitable seal.

Original language	English
Title of host publication	10th Asian International Conference on Fluid Machinery, AICFM
Pages	91-99
Number of pages	9
Volume	1225
DOIs	https://doi.org/10.1063/1.3464944
Publication status	Published - Nov 25 2010
Event	10th Asian International Conference on Fluid Machinery, AICFM - Kuala Lumpur, Malaysia Duration: Oct 21 2010 → Oct 23 2010

Other

Other	10th Asian International Conference on Fluid Machinery, AICFM
Country/Territory	Malaysia
City	Kuala Lumpur
Period	10/21/10 → 10/23/10

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.3464944

Cite this

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title = "Experimental study on leakage flow in labyrinth seals with asymmetric geometries",

abstract = "The labyrinth seal is one of non-contact seals, which is used as a seal device of rotary machines from reasons of the lubrication free and small losses. So far, many researchers have investigated the characteristics and suitable geometries of labyrinth seals, though only one directional flow of the seal has been focused up to now. As flow direction in the seal becomes changeable depending on the gas-purge system and the inner pressure variation of machines for recent applications, a guideline of designing labyrinth seal with changeable flow directions is required. In the present report, effects of seal characteristics and internal flow behaviors on various shapes of asymmetric convexity in labyrinth seals are experimentally investigated and relations between pressure loss and convexity geometries are discussed for designing a suitable seal.",

author = "Kazufumi Nishii and Akinori Furukawa and Satoshi Watanabe and Kunihiro Miyake",

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AU - Nishii, Kazufumi

AU - Furukawa, Akinori

AU - Watanabe, Satoshi

AU - Miyake, Kunihiro

PY - 2010/11/25

Y1 - 2010/11/25

N2 - The labyrinth seal is one of non-contact seals, which is used as a seal device of rotary machines from reasons of the lubrication free and small losses. So far, many researchers have investigated the characteristics and suitable geometries of labyrinth seals, though only one directional flow of the seal has been focused up to now. As flow direction in the seal becomes changeable depending on the gas-purge system and the inner pressure variation of machines for recent applications, a guideline of designing labyrinth seal with changeable flow directions is required. In the present report, effects of seal characteristics and internal flow behaviors on various shapes of asymmetric convexity in labyrinth seals are experimentally investigated and relations between pressure loss and convexity geometries are discussed for designing a suitable seal.

AB - The labyrinth seal is one of non-contact seals, which is used as a seal device of rotary machines from reasons of the lubrication free and small losses. So far, many researchers have investigated the characteristics and suitable geometries of labyrinth seals, though only one directional flow of the seal has been focused up to now. As flow direction in the seal becomes changeable depending on the gas-purge system and the inner pressure variation of machines for recent applications, a guideline of designing labyrinth seal with changeable flow directions is required. In the present report, effects of seal characteristics and internal flow behaviors on various shapes of asymmetric convexity in labyrinth seals are experimentally investigated and relations between pressure loss and convexity geometries are discussed for designing a suitable seal.

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BT - 10th Asian International Conference on Fluid Machinery, AICFM

T2 - 10th Asian International Conference on Fluid Machinery, AICFM

Y2 - 20 October 2010 through 22 October 2010

ER -

Experimental study on leakage flow in labyrinth seals with asymmetric geometries

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