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A Time Efficient Adaptive Gridding Approach and Improved Calibrations in Five-Hole Probe Measurements
Joint Authors
Source
International Journal of Rotating Machinery
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-04
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Five-Hole Probes (FHP), being a dependable and accurate aerodynamic tool, are an excellent choice for measuring three-dimensional flow fields in turbomachinery.
To improve spatial resolution, a subminiature FHP with a diameter of 1.68 mm is employed.
High length to diameter ratio of the tubing and manual pitch and yaw calibration cause increased uncertainty.
A new FHP calibrator is designed and built to reduce the uncertainty by precise, computer controlled movements and reduced calibration time.
The calibrated FHP is then placed downstream of the nozzle guide vane (NGV) assembly of a low-speed, large-scale, axial flow turbine.
The cold flow HP turbine stage contains 29 vanes and 36 blades.
A fast and computer controllable traversing system is implemented using an adaptive grid method for the refinement of measurements in regions such as vane wake, secondary flows, and boundary layers.
The current approach increases the possible number of measurement points in a two-hour period by 160%.
Flow structures behind the NGV measurement plane are identified with high spatial resolution and reduced uncertainty.
The automated pitch and yaw calibration and the adaptive grid approach introduced in this study are shown to be a highly effective way of measuring complex flow fields in the research turbine.
American Psychological Association (APA)
Town, Jason& Camci, Cengiz. 2015. A Time Efficient Adaptive Gridding Approach and Improved Calibrations in Five-Hole Probe Measurements. International Journal of Rotating Machinery،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1066926
Modern Language Association (MLA)
Town, Jason& Camci, Cengiz. A Time Efficient Adaptive Gridding Approach and Improved Calibrations in Five-Hole Probe Measurements. International Journal of Rotating Machinery No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1066926
American Medical Association (AMA)
Town, Jason& Camci, Cengiz. A Time Efficient Adaptive Gridding Approach and Improved Calibrations in Five-Hole Probe Measurements. International Journal of Rotating Machinery. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1066926
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1066926