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Whole-field visualisation and velocity measurement of an instantaneous transonic turbine flow
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UNSPECIFIED (1997) Whole-field visualisation and velocity measurement of an instantaneous transonic turbine flow. In: 17th International Congress on Instrumentation in Aerospace Simulation Facilities, ASILOMAR CONF CTR, PACIFIC GROVE, CA, SEP 29-OCT 02, 1997. Published in: ICIASF '97 RECORD - INTERNATIONAL CONGRESS ON INSTRUMENTATION IN AEROSPACE SIMULATION FACILITIES pp. 278-286. ISBN 0-7803-4168-6.
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Abstract
The work described in this paper represents a premiere in the application of Particle Image Velocimetry (PIV) to turbomachinery flows. This technique allowed the visualisation of the instantaneous transonic flow in the inter-blade passage of a rotating annular cascade at engine conditions. By means of photographic recording of flow tracers and specialised image processing, the instantaneous velocity over the whole field was measured with estimated accuracy between 2 and 5%. Furthermore, the vorticity map was created by means of differentiation and linear interpolation on a Delaunay triangular grid. From the superposition of sequential frames, a steady state velocity map was reconstructed.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics | ||||
Journal or Publication Title: | ICIASF '97 RECORD - INTERNATIONAL CONGRESS ON INSTRUMENTATION IN AEROSPACE SIMULATION FACILITIES | ||||
Publisher: | I E E E | ||||
ISBN: | 0-7803-4168-6 | ||||
Editor: | Owen, FK | ||||
Official Date: | 1997 | ||||
Dates: |
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Number of Pages: | 9 | ||||
Page Range: | pp. 278-286 | ||||
Publication Status: | Published | ||||
Title of Event: | 17th International Congress on Instrumentation in Aerospace Simulation Facilities | ||||
Location of Event: | ASILOMAR CONF CTR, PACIFIC GROVE, CA | ||||
Date(s) of Event: | SEP 29-OCT 02, 1997 |
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