Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Nicholas Cumpsty"'
Publikováno v:
Journal of Turbomachinery. 127:331-339
Flow separations in the corner regions of blade passages are common. The separations are three dimensional and have quite different properties from the two-dimensional separations that are considered in elementary courses of fluid mechanics. In parti
Autor:
J. H. Horlock, Nicholas Cumpsty
Publikováno v:
Journal of Turbomachinery. 128:120-129
Averaging nonuniform flow is important for the analysis of measurements in turbomachinery and gas turbines; more recently an important need for averaging arises with results of computational fluid dynamics (CFD). In this paper we show that there is a
Autor:
Nicholas Cumpsty, Edward M. Greitzer
Publikováno v:
Journal of Propulsion and Power. 20:15-26
Most accounts of the history of turbomachinery look at the machines that were produced. This paper looks at the underlying ideas behind the designs and the methods that were used. It will be seen that in this history the inventiveness of engine desig
Autor:
Nicholas Cumpsty
Publikováno v:
Jet Propulsion. :289-296
Autor:
Mark J. Taylor, Peter I. Wright, Nicholas Cumpsty, J. M. M. Place, Simon John Gallimore, John J. Bolger
Publikováno v:
Journal of Turbomachinery. 124:533-541
This paper describes the introduction of 3D blade designs into the core compressors of the Rolls-Royce Trent engine series with particular emphasis on the use of sweep and dihedral in the rotor designs. It follows the development of the basic ideas i
Publikováno v:
Journal of Turbomachinery. 122:777-786
A study has been conducted, using an unsteady three-dimensional Reynolds-averaged Navier–Stokes simulation, to define the effect of impeller–diffuser interaction on the performance of a centrifugal compressor stage. The principal finding from the
Autor:
L Tain, Nicholas Cumpsty
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 214:221-242
The flow around the leading edge of a compressor blade is interesting and important because there is such a strong interaction between the viscous boundary layer flow and the inviscid flow around it. As the velocity of the inviscid flow just outside
Autor:
Choon S. Tan, S. Arif Khalid, Amrit S. Khalsa, Frank E. Marble, John J. Adamczyk, Nicholas Cumpsty, Ian A. Waitz, Edward M. Greitzer
Publikováno v:
Journal of Turbomachinery. 121:499-509
This paper presents a new methodology for quantifying compressor endwall blockage and an approach, using this quantification, for defining the links between design parameters, flow conditions, and the growth of blockage due to tip clearance flow. Num
Publikováno v:
Journal of Turbomachinery. 122:1-10
This is Part 1 of a two-part paper considering the performance of radial diffusers for use in a high-performance centrifugal compressor. Part 1 reports on discrete-passage diffusers (shown in Fig. 1) while Part 2 describes a test of a straight-channe