Influence of Free-Stream Turbulence and Blade Pressure Gradient on Boundary Layer and Loss Behavior of Turbine Cascades

Autor:	H. Hoheisel, R. Kiock, H. J. Lichtfuss, L. Fottner
Rok vydání:	1987
Předmět:	Mechanical Engineering
Zdroj:	Journal of Turbomachinery. 109:210-219
ISSN:	1528-8900 0889-504X
DOI:	10.1115/1.3262087
Popis:	The optimization of the blade surface velocity distribution is promising for a reduction of turbine cascade losses. Theoretical and experimental investigations on three turbine cascades with the same blade loading show the important influence of the blade pressure gradient and the free-stream turbulence on the loss behavior. The results presented demonstrate that it is the boundary layer transition behavior that determines the losses on turbine cascades. An enormous effort in measuring technique is required in order to define the location of transition from cascade experiments very accurately.
Databáze:	OpenAIRE
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