Zobrazeno 1 - 10
of 21
pro vyhledávání: '"M. G. Rose"'
Autor:
M. Abda, M. G. Rose
Publikováno v:
Volume 2B: Turbomachinery.
The inevitable gap between the rotor tips and the casing promotes flow leakage driven by the pressure difference between the pressure side and suction side of the blade. Axisymmetric tip gap profiling was applied at the blade tip and the casing endwa
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 223:1001-1016
In the past it was found experimentally and numerically that eddy shedding on trailing edges of turbine aerofoils has significant effect on the aerodynamic performance. Aerofoils of gas turbines usually have relatively thick trailing edges for reason
Autor:
M G Rose
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 218:417-427
This paper reports on an experiment in a centrifugal pump at low flowrates. A variety of measurement techniques was used: laser Doppler anemometry (LDA), impeller vane surface static pressure, a three-hole pneumatic probe and time-resolved static pre
Publikováno v:
Journal of Turbomachinery. 125:497-504
This paper describes the redesign of the HP turbine of the Rolls-Royce Trent 500 engine, making use of nonaxisymmetric end walls. The original, datum turbine used conventional axisymmetric end walls, while the vane and (shrouded) rotor aerofoil profi
Publikováno v:
Journal of Turbomachinery. 121:184-190
A three-dimensional steady viscous finite volume pressure correction method for the solution of the Reynolds-averaged Navier–Stokes equations has been used to calculate the heat transfer rates on the end walls of a modern High Pressure Turbine firs
Autor:
M. G. Rose, N. W. Harvey
Publikováno v:
Journal of Turbomachinery. 122:68-77
In this paper the mixing of stator wakes in turbomachinery is considered. An extension is made to the existing model of Denton (1993, ASME J. Turbomach., 115, pp. 621–656) which addresses the effects of acceleration before mixing. Denton showed tha
Publikováno v:
Volume 7: Turbomachinery, Parts A, B, and C.
This paper presents an experimental and computational study of non-axisymmetric rotor end wall profiling in a low pressure turbine. End wall profiling has been proven to be an effective technique to reduce both turbine blade row losses and the requir
Publikováno v:
Volume 7: Turbomachinery, Parts A and B.
Non-axisymmetric endwall profiling is a promising method to reduce secondary losses in axial turbines. However, in high-pressure turbines, a small amount of air is ejected at the hub rim seal to prevent the ingestion of hot gases into the cavity betw
Publikováno v:
Volume 6: Turbomachinery, Parts A, B, and C.
This paper is the second part of a two part paper that reports on the improvement of efficiency of a one-and-half stage high work axial flow turbine. The first part covered the design of the endwall profiling as well as a comparison with steady probe
Autor:
M. G. Rose
Publikováno v:
Volume 5: Turbo Expo 2004, Parts A and B.
The low speed axial research compressor ‘Rheinfall’ in the Turbomachinery Labs at ETH Zu¨rich has been modified to include a novel stator row. The conventional stator’s vanes have been replaced with a cascade of rotating cylinders or ‘Magnus