A hybrid large eddy simulation (LES) related technique is used to explore some key turbomachinery relevant flows. Near wall Reynolds-averaged Navier-Stokes (RANS) modeling is used to cover over especially small scales, the LES resolution of which is generally intractable with current computational power. Away from walls, large eddy type simulation is used but with no LES model (numerical LES (NLES)). Linking of the two model zones through a Hamilton–Jacobi equation is explored. The hybrid strategy is used to predict turbine and compressor end wall flows, flow around a fan blade section, jet flows, and a cutback trailing edge. Also, application of NLES to the flow in an idealized high pressure compressor drum cavity is considered. Generally, encouraging results are found. However, challenges remain, especially for flows where transition modeling is important.
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March 2012
Research Papers
Hybrid LES Approach for Practical Turbomachinery Flows—Part II: Further Applications
Paul Tucker,
Paul Tucker
Professor
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
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Simon Eastwood,
Simon Eastwood
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
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Christian Klostermeier,
Christian Klostermeier
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
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Hao Xia,
Hao Xia
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
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Prasun Ray,
Prasun Ray
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
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James Tyacke,
James Tyacke
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
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William Dawes
William Dawes
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
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Paul Tucker
Professor
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
Simon Eastwood
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
Christian Klostermeier
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
Hao Xia
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
Prasun Ray
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
James Tyacke
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United Kingdom
William Dawes
Department of Engineering, Whittle Laboratory,
University of Cambridge
, Cambridge CB3 0DY, United KingdomJ. Turbomach. Mar 2012, 134(2): 021024 (10 pages)
Published Online: July 7, 2011
Article history
Received:
July 2, 2010
Revised:
July 30, 2010
Online:
July 7, 2011
Published:
July 7, 2011
Connected Content
A companion article has been published:
Hybrid LES Approach for Practical Turbomachinery Flows—Part I: Hierarchy and Example Simulations
Citation
Tucker, P., Eastwood, S., Klostermeier, C., Xia, H., Ray, P., Tyacke, J., and Dawes, W. (July 7, 2011). "Hybrid LES Approach for Practical Turbomachinery Flows—Part II: Further Applications." ASME. J. Turbomach. March 2012; 134(2): 021024. https://doi.org/10.1115/1.4003062
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