Gostelow, Ali, Aldo.pdf (544.38 kB)
Some Issues and Developments in Analytical and Experimental Work on Turbine Blade Flows
conference contribution
posted on 2016-04-21, 09:09 authored by Jonathan Paul Gostelow, A. Mahallati, Aldo RonaAreas 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.
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Citation
International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC16), 2016, pp. 1-8 (8)Author affiliation
/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of EngineeringSource
International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, Hawaii, USAVersion
- AM (Accepted Manuscript)
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International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC16)Acceptance date
2016-04-10Copyright date
2016Available date
2016-04-21Publisher version
http://isromac-isimet.univ-lille1.fr/Temporal coverage: start date
2016-04-10Temporal coverage: end date
2016-04-15Language
enAdministrator link
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