LAPSE:2023.30541
Published Article
LAPSE:2023.30541
Analysis of Heat Flux Distribution during Brush Seal Rubbing Using CFD with Porous Media Approach
April 14, 2023
This paper discusses the question of heat flux distribution between bristle package and rotor during a rubbing event. A three-dimensional Computational Fluid Dynamics (3D CFD) model of the brush seal test rig installed at the Institute of Thermal Turbomachinery (ITS) was created. The bristle package is modelled as a porous medium with local non-thermal equilibrium. The model is used to numerically recalculate experimentally conducted rub tests on the ITS test rig. The experimentally determined total frictional power loss serves as an input parameter to the numerical calculation. By means of statistical evaluation methods, the ma in influences on the heat flux distribution and the maximum temperature in the frictional contact are determined. The heat conductivity of the rotor material, the heat transfer coefficients at the bristles and the rubbing surface were identified as the dominant factors.
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Keywords
brush seal, Computational Fluid Dynamics, heat flux distribution, porous media, rubbing
Subject
Suggested Citation
Hildebrandt M, Schwitzke C, Bauer HJ. Analysis of Heat Flux Distribution during Brush Seal Rubbing Using CFD with Porous Media Approach. (2023). LAPSE:2023.30541
Author Affiliations
Hildebrandt M: Institute of Thermal Turbomachinery (ITS), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany
Schwitzke C: Institute of Thermal Turbomachinery (ITS), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany
Bauer HJ: Institute of Thermal Turbomachinery (ITS), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany
Schwitzke C: Institute of Thermal Turbomachinery (ITS), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany
Bauer HJ: Institute of Thermal Turbomachinery (ITS), Karlsruhe Institute of Technology, Kaiserstraße 12, 76131 Karlsruhe, Germany
Journal Name
Energies
Volume
14
Issue
7
First Page
1888
Year
2021
Publication Date
2021-03-29
Published Version
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en14071888, Publication Type: Journal Article
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LAPSE:2023.30541
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doi:10.3390/en14071888
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[v1] (Original Submission)
Apr 14, 2023
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Apr 14, 2023
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