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Predicting aerodynamic resistance of brush seals using computational fluid dynamics and a 2-D tube banks model
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
Kunming University of Science and Technology, CHI.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
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2018 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 126, p. 9-15Article in journal (Refereed) Published
Abstract [en]

Aerodynamic resistance of a brush seal was mainly studied. The velocity distribution along three specified lines was presented. By considering the pressure differential, Reynolds number and Euler number (Eu) were modified. The effect of geometric arrangements and pressure differentials on Eu and leakage were analyzed. Two correlations were fitted based on the numerical results. The results reveal the velocity distribution is almost flat, asymmetric along the specified lines. The velocity increases and decreases almost linearly at centerlines. Eu decreases gradually less with the increase of pressure differential and trends towards a fixed value. A larger Eu indicates stronger resistance but not necessarily less leakage. Finally, two fitted correlations are developed and one is exponential to the row number fits better. © 2018 Elsevier Ltd

Place, publisher, year, edition, pages
Elsevier Ltd , 2018. Vol. 126, p. 9-15
Keywords [en]
Aerodynamic resistance, Brush seal, Euler number, Reynolds number
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-16219DOI: 10.1016/j.triboint.2018.04.023Scopus ID: 2-s2.0-85046798940OAI: oai:DiVA.org:bth-16219DiVA, id: diva2:1209830
Available from: 2018-05-24 Created: 2018-05-24 Last updated: 2018-05-24Bibliographically approved

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Kang, YachiKao-Walter, SharonReheman, Wureguli

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