Zobrazeno 1 - 10
of 16
pro vyhledávání: '"N. W Harvey"'
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:
Water, Air, and Soil Pollution. 148:111-125
The adsorption characteristics of heavy metals: cadmium(II), chromium(III), copper(II), nickel(II), lead(II), and zinc(II) ions by kaolin (kaolinite) and ballclay (illite) from Thailand were studied. This research was focussed on the pH, adsorption i
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. 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. 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:
Journal of Radioanalytical and Nuclear Chemistry. 226:159-173
The movement of85Sr,137Cs,54Mn and60Co in the 50 cm soil profile was studied with and without the presence of plant roots (triticum aestivum) in order to investigate the influence of roots and depth contamination upon the migration of radionuclides.
Autor:
T. P. Offord, N. W. Harvey
Publikováno v:
Volume 6: Turbomachinery, Parts A, B, and C.
Non-axisymmetric end wall profiling is now a well established design methodology in axial flow turbines, used principally to improve their aerodynamic efficiency by reducing secondary loss. However, profiled end walls (PEWs) have yet to find an in-se
Autor:
N. W. Harvey
Publikováno v:
Volume 6: Turbomachinery, Parts A, B, and C.
Non-axisymmetric end wall profiling is now a well established design methodology in axial flow turbines, used principally to improve their aerodynamic efficiency by reducing secondary loss. However, profiled end walls (PEWs) have yet to find an in-se
Publikováno v:
Volume 5: Turbo Expo 2002, Parts A and B.
The composition of the time-resolved surface pressure field around a high-pressure rotor blade caused by the presence of neighbouring blade rows is investigated with the individual effects of wake, shock and potential field interaction being determin