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Title: Some Issues and Developments in Analytical and Experimental Work on Turbine Blade Flows
Authors: Gostelow, Jonathan Paul
Mahallati, A.
Rona, Aldo
First Published: 15-Apr-2016
Presented at: International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, Hawaii, USA
Start Date: 10-Apr-2016
End Date: 15-Apr-2016
Citation: International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC16), 2016, pp. 1-8 (8)
Abstract: Areas where substantial research on planar turbine cascades is ongoing, or is still needed, are identified. Compressibility effects are particularly important and are addressed in the three main sections. The modeling of the shock-boundary layer interaction is not yet reliable. For supersonic speeds the agreement is excellent apart from the crucial region downstream of the shocks. At subsonic speeds the vortices were shed in a classical von Kármán vortex street. This resulted in strong base pressure deficits causing high wake losses and energy separation in the wake. The base pressure deficit and the measurements of wake energy separation coincide and it is concluded that the two phenomena are both manifestations of von Kármán vortex shedding. At Mach numbers above unity the vortex shedding was found to be one of a number of transient shedding patterns.
Version: Post-print
Status: Peer-reviewed
Type: Conference Paper
Rights: Copyright © 2016 the authors. The file associated with this record is distributed under the Creative Commons “Attribution Non-Commercial No Derivatives” licence, further details of which can be found via the following link:
Appears in Collections:Conference Papers & Presentations, Dept. of Engineering

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