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The governing parameter controlling leakage behaviour transitioned from pressure ratio for a large clearance, to pressure load for a line-on-line configuration. In all cases, leakage flow converged to an asymptotic value once maximum levels of bristle blow-down and pack compaction were attained. For both clearance configurations, this occurred at a pressure ratio corresponding to that at which axial distributions of pressure converged; equivalent behaviour was noted for the line-on-line configuration with pressure drop. Comparatively small changes were experienced in leakage behaviour and to the inter-bristle pressure field with increasing pressure drop for the line-online brush seal. This indicated that brush seal performance is more influenced by changes in bristle blow-down than bristle pack compaction.
|Title of host publication||Heat Transfer - General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Publication status||Published - 28 Oct 2022|
|Event||ASME Turbo Expo 2022 - Rotterdam, Netherlands|
Duration: 13 Jun 2022 → 17 Jun 2022
|Name||Proceedings of the ASME Turbo Expo|
|Conference||ASME Turbo Expo 2022|
|Period||13/06/22 → 17/06/22|
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- 1 Finished
3/01/17 → 1/07/19
Project: Research council