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The effect of external casing impingement cooling manifold standoff distance on casing contraction for thermal control of blade tip clearance

Abstract:

Thermal closure of the engine casing is widely used to minimize undesirable blade tip leakage flows thus improving jet engine performance. This may be achieved using an impingement cooling scheme on the external casing wall, provided by manifolds attached to the outside of the engine. The assembly tolerance of these components leads to variation in the standoffdistance between the manifold and the casing, and its effects on casing contraction must be understood to allow build tolerance to be ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1115/1.4038280

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
Oxford college:
St Catherines College
Role:
Author
Rolls-Royce plc More from this funder
Technology Strategy Board More from this funder
Publisher:
American Society of Mechanical Engineers Publisher's website
Journal:
Journal of Turbomachinery Journal website
Volume:
140
Issue:
2
Pages:
021005
Publication date:
2017-11-29
DOI:
EISSN:
1528-8900
ISSN:
0889-504X
Pubs id:
pubs:811498
URN:
uri:7e267451-54fd-4fa4-be1b-9c770c0faec1
UUID:
uuid:7e267451-54fd-4fa4-be1b-9c770c0faec1
Local pid:
pubs:811498

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