Effects of uncertainty and quasi-chaotic geometry on the leakage of brush seals

Alexander Fuchs, Oskar J. Haidn

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

This paper presents a brief review of the experimental and theoretical state of the art regarding the leakage flow prediction of brush seals. The authors model a computational fluid dynamics based approach for the leakage flow of brush seals. The brush seal is treated by its real geometrical structure, namely numerous bristles in an array in transverse flow. For the inner composition of the package, two differing textures are chosen to study their influence on the leakage behavior. Furthermore, for each texture multiple inter-bristle distances, pressure ratios and turbulence models are evaluated. In addition, the influence of not regular arrangement configurations, which form a quasi-chaotic inner structure, are studied. The gained results are compared to other authors’ experimental and numerical data.

Original languageEnglish
StatePublished - 2017
Event17th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC 2017 - Maui, United States
Duration: 16 Dec 201721 Dec 2017

Conference

Conference17th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC 2017
Country/TerritoryUnited States
CityMaui
Period16/12/1721/12/17

Keywords

  • Brush seal
  • CFD
  • Leakage
  • Quasi-chaotic

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