Numerical Investigation on the Leakage Characteristics of Brush Seals Based on Fluid-Structure Interaction

DOI

10.2991/emcs-17.2017.42How to use a DOI?

Keywords

Brush seals; Fluid-structure interaction; Flow field characteristic; Leakage characteristic

Abstract

This paper investigates the leakage characteristics of brush seals including the flow field characteristic and the effects of structural parameters on the leakage characteristic, which was discussed based on three-dimensional (3-D) computational model of brush seal, two-way fluid-structure interaction. As illustrated in the analysis of the leakage characteristics of brush seals, (1) the leakage with the influence of bristle deflection is closer to the results of experiment relative to that without bristle deflection, which validate the developed 3-D computational model to be more reasonable; (2) the flow field characteristics (pressure and velocity) of brush seal are revealed reasonably; (3) with the increasing of the height of backing plate fence, the clearance of brush wire and the axial clearance between brush bristle and back plate, the leakage factor rises and then reaches to a stable value when the clearance of brush is larger than 0.3 mm; moreover, (4) with the increase of brush wire diameter, the leakage factor decreases firstly and then tends to stabilization. The efforts of this paper provide a useful numerical method to clearly understand the leakage characteristics of brush seal, which is beneficial to improve the design of brush seals.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yitong Wang
PY  - 2017/03
DA  - 2017/03
TI  - Numerical Investigation on the Leakage Characteristics of Brush Seals Based on Fluid-Structure Interaction
BT  - Proceedings of the 2017 7th International Conference on Education, Management, Computer and Society (EMCS 2017)
PB  - Atlantis Press
SP  - 210
EP  - 216
SN  - 2352-538X
UR  - https://doi.org/10.2991/emcs-17.2017.42
DO  - 10.2991/emcs-17.2017.42
ID  - Wang2017/03
ER  -