Show simple item record

dc.contributor.authorAlshroof, O.
dc.contributor.authorForbes, Gareth
dc.contributor.authorRandall, R.
dc.contributor.editorProf. G.D. Mallinson and Dr J.E. Cater
dc.identifier.citationAlshroof, Osama N. and Forbes, Gareth L. and Randall, Robert B. 2010. Relationship between the pressure at the casing wall and at the blade tip for a vibrating turbine blade, in Mallinson, G.D. and Cater, J.E. (ed), 17th Australasian Fluid Mechanics Conference, Dec 5 2010. Auckland, New Zealand: Australasian Fluid Mechanics Society.

A recent research program has identified the possibility of using the analysis of casing wall pressures in the indirect measurement of gas turbine rotor blade vibration amplitudes [1]. Analytical modelling of the casing wall pressures and reconstruction of rotor blade vibration amplitudes from the analysis of these simulated pressure signals have shown potential advantages over current non-contact rotor blade vibration measurement methods. However, the modelling made some fundamental assumptions about the casing wall pressure. One of the assumptions made was that the pressure at the blade tip is not significantly different from that measured across the clearance gap at the casing wall. This fluid-structure hypothesis is investigated in this paper. Unsteady computational fluid dynamic modelling of the flow conditions around the blade surface, combined with the blade structural motion, is performed numerically, and the distributions of the pressure across the rotor blade tip and casing clearance gap are investigated and reported.

dc.publisherAustralasian Fluid Mechanics Society
dc.subjectgas turbine
dc.subjectcasing wall pressure
dc.subjectblade vibration
dc.titleRelationship between the pressure at the casing wall and at the blade tip for a vibrating turbine blade
dc.typeConference Paper
dcterms.source.titleProceedings of the 17th Australasian Fluid Mechanics Conference
dcterms.source.seriesProceedings of the 17th Australasian Fluid Mechanics Conference
dcterms.source.conference17th Australasian Fluid Mechanics Conference
dcterms.source.conference-start-dateDec 5 2010
dcterms.source.conferencelocationAuckland, New Zealand
dcterms.source.placeNew Zealand
curtin.departmentDepartment of Mechanical Engineering
curtin.accessStatusOpen access

Files in this item


This item appears in the following Collection(s)

Show simple item record