Zobrazeno 1 - 10
of 26
pro vyhledávání: '"H. P. Hodson"'
A method of using thermochromic liquid crystals has been developed to visualize the thermal footprints of artificially created turbulent spots as they propagate downstream in an otherwise laminar boundary layer. In the present study, this technique w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e22f45e3f77eb372e51a1a47b95cd38c
https://doi.org/10.1243/0954410991532927
https://doi.org/10.1243/0954410991532927
Autor:
R. D. Stieger, H. P. Hodson
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 217:413-419
Boundary layer measurements were performed on a flat plate with an imposed pressure gradient typical of a high-lift low-pressure (LP) turbine blade and subject to incoming turbulent wakes shed from a moving bar wake generator. A multiple-orientation
Autor:
R. J. Howell, H. P. Hodson, V. Schulte, R. D. Stieger, Heinz-Peter Schiffer, F. Haselbach, N. W. Harvey
Publikováno v:
Journal of Turbomachinery. 124:385-392
This paper describes a detailed study into the unsteady boundary layer behavior in two high-lift and one ultra-high-lift Rolls-Royce Deutschland LP turbines. The objectives of the paper are to show that high-lift and ultra-high-lift concepts have bee
Publikováno v:
Journal of Turbomachinery. 124:161-166
Nowadays there is a big effort toward improving the low-pressure turbine efficiency even to the extent of penalizing other relevant design parameters. LP turbine efficiency influences SFC more than other modules in the engine. Most of the research ha
Publikováno v:
Journal of Turbomachinery. 123:181-188
This paper shows how it is possible to reduce the number of blades in LP turbines by approximately 15 percent relative to the first generation of high lift blading employed in the very latest engines. This is achieved through an understanding of the
Publikováno v:
Journal of Turbomachinery. 119:786-793
This paper describes an investigation of the aerodynamic aspects of endwall film-cooling, in which the flow field downstream of a large-scale low-speed linear turbine cascade has been measured. The integrated losses and locations of secondary flow fe
Autor:
I. Popović, H. P. Hodson
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
The objective of this work was to assess and understand the effects of parametric variation performed on a typical overlapping rim seal geometry. The datum geometry has been focus of a detailed experimental investigation employing a large-scale linea
Autor:
I. Popović, H. P. Hodson
Publikováno v:
Volume 4: Heat Transfer, Parts A and B.
This paper presents an investigation of a range of engine realistic rim seals starting from a simple axial seal to different types of overlapping seals. The experiments were performed in a large-scale linear cascade equipped with a secondary air syst
Publikováno v:
Volume 5: Heat Transfer, Parts A and B.
This paper investigates the effects of compressibility and unsteadiness due to the relative blade row motion and their importance in the interaction between hub leakage (purge) and mainstream flows. First, the challenges associated with the blade red
Publikováno v:
Journal of Turbomachinery. 132
A numerical investigation of the flow and heat transfer characteristics of tip leakage in a typical film cooled industrial gas turbine rotor is presented in this paper. The computations were performed on a rotating domain of a single blade with a cle