Experimentelle Untersuchungen laminarer Grenzschichten bei instabiler Schichtung

Wortmann, Florian

doi:10.1007/978-3-662-29364-5_108

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…It is evident from Figs. 6a and b that the substitution in equation (16) of the more realistic value for y of 1.33 for otherwise the same conditions has negligible effect on the distributions of M, U and Re x along the pressure surface. Figs.…”

Section: Laminar1sation Condition As a Design Criterion For Turbine Bmentioning

confidence: 93%

“…to 36 for U'.,/11 0, of 0.003. Subsequent investigations, including those of Tani (15), Wortmann (16,17), T'ani and Aihara (18) and Winoto, Durao and Crane (19), have been essentially concerned with visualization of, and velocity measurements in, the laminar boundary layer to identify the system of vortices on concave surfaces, and their effects on transition. Tani and Aihara (18) concluded that these were indirect in modifying the development of Tollmien-Schlichting waves by inducing a spanwise variation of boundary-layer thickness.…”

Section: Measurements Over Concave Surfacesmentioning

confidence: 99%

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Flow Transition Phenomena and Heat Transfer Over the Pressure Surfaces of Gas Turbine Blades

Brown

Martin

1981

Volume 3: Heat Transfer; Electric Power

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Detailed examination of flow measurements over concave pressure surfaces suggests that interaction of Taylor-Goertler vorticity with mainstream turbulent exerts only limited influence in enhancing laminar boundary-layer heat transfer. While transition is primarily controlled by the Launder laminarisation criterion, the Goertler number at which it subsequently occurs is not solely determined by turbulence intensity. Adoption of K >2.5.10 ± as a design criterion for the pressure surfaces of turbine blades would appear to have significant advantages in terms of reduced heat transfer, increased lift, and lower aerodynamic drag.

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Section: Laminar1sation Condition As a Design Criterion For Turbine Bmentioning

confidence: 93%