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Detailed Unsteady Simulation of a Counterrotating Aspirated Compressor with a Focus on the Aspiration Slot and Plenum
Joint Authors
Turner, Mark G.
Knapke, Robert D.
Source
International Journal of Rotating Machinery
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-01-30
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
An unsteady analysis of the MIT counterrotating aspirated compressor (CRAC) has been conducted using the Numeca FINE/Turbo 3D viscous turbulent flow solver with the Nonlinear Harmonic (NLH) method.
All three blade rows plus the aspiration slot and plenum were included in the computational domain.
Both adiabatic and isothermal solid wall boundary conditions were applied and simulations with and without aspiration were completed.
The aspirated isothermal boundary condition solutions provide the most accurate representation of the trends produced by the experiment, particularly at the endwalls.
These simulations provide significant insight into the flow physics of the aspiration flow path.
Time histories and spanwise distributions of flow properties in the aspiration slot and plenum present a flow field with significant temporal and spatial variations.
In addition, the results provide an understanding of the aspiration flow path choking mechanism that was previously not well understood and is consistent with experimental results.
The slot and plenum had been designed to aspirate 1% of the flow path mass flow, whereas the experiment and simulations show that it chokes at about 0.5% mass flow.
American Psychological Association (APA)
Knapke, Robert D.& Turner, Mark G.. 2013. Detailed Unsteady Simulation of a Counterrotating Aspirated Compressor with a Focus on the Aspiration Slot and Plenum. International Journal of Rotating Machinery،Vol. 2013, no. 2013, pp.1-17.
https://search.emarefa.net/detail/BIM-503843
Modern Language Association (MLA)
Knapke, Robert D.& Turner, Mark G.. Detailed Unsteady Simulation of a Counterrotating Aspirated Compressor with a Focus on the Aspiration Slot and Plenum. International Journal of Rotating Machinery No. 2013 (2013), pp.1-17.
https://search.emarefa.net/detail/BIM-503843
American Medical Association (AMA)
Knapke, Robert D.& Turner, Mark G.. Detailed Unsteady Simulation of a Counterrotating Aspirated Compressor with a Focus on the Aspiration Slot and Plenum. International Journal of Rotating Machinery. 2013. Vol. 2013, no. 2013, pp.1-17.
https://search.emarefa.net/detail/BIM-503843
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-503843