Zobrazeno 1 - 10
of 48
pro vyhledávání: '"H. E. Gallus"'
Publikováno v:
Journal of Turbomachinery. 125:173-182
The interaction between impeller and diffuser is considered to have strong influence on the flow in highly loaded centrifugal compressors. However, the knowledge about this influence is still not satisfying. This two-part paper presents an experiment
Publikováno v:
MTZ - Motortechnische Zeitschrift. 61:508-514
Auf dem Gebiet der mehrstufigen Axialverdichter werden fur die Steigerung der Wirkungsgrade und Vergroserung der Betriebsbereiche grose Anstrengungen unternommen. Um dazu alle relevanten Aspekte der komplexen viskosen und instationaren Stromungsverha
Publikováno v:
Journal of Propulsion and Power. 16:327-335
Anew three-dimensionalNavier–Stokesmethod for the analysisof the unsteady ow inmultiple turbomachinery blade rows is presented. To take into account turbulent effects, a low-Reynolds-numberk–2model is used. Smooth wave propagationaccross the s
Publikováno v:
Journal of Turbomachinery. 121:763-771
The behaviour of vaned radial diffusers is generally considered to be due to the flow phenomena in the vaneless and the semi-vaned space in the diffuser inlet region. Even considering unsteady aspects, the adjacent diffuser channel is regarded as les
Autor:
H. E. Gallus, Frank Mildner
Publikováno v:
Journal of Turbomachinery. 120:744-752
The subject of this paper is a numerical method for the calculation of the transonic flow field of multistage turbines, taking high coolant flow into account. To reduce the processing time, a throughflow method based on the principles of Wu is used f
Autor:
H. E. Gallus, C. Poensgen
Publikováno v:
Journal of Turbomachinery. 118:189-196
This paper describes the results on an experimental investigation of rotating stall flow inside a single-stage axial flow compressor. Tests were carried out in two steps. First, measurements were taken to investigate the transition process into rotat
Autor:
H. E. Gallus, H. Hönen
Publikováno v:
Journal of Turbomachinery. 117:81-86
The unsteady flow in a single-stage axial flow compressor at different operating conditions has been investigated with hot-wire and hot-film probes to find out the influence of the aerodynamic compressor load on the periodic fluctuations. These resul
Publikováno v:
Journal of Turbomachinery. 115:565-572
In consideration of further jet-engine developments required by applications for supersonic travel aircraft, airbreathing propulsion of space vehicles or only the improvement of conventional high performance turbo engines, highly loaded supersonic co
Autor:
H. E. Gallus, Hannes Benetschik
Publikováno v:
Journal of Propulsion and Power. 8:403-409
This article presents a numerical algorithm for calculating inviscid and viscous flows in transonic and super- sonic turbomachinery cascades. Of particular interest is the prediction of shock-induced boundary-layer sep- aration and the comparison wit
Publikováno v:
Journal of Turbomachinery. 113:198-206
A detailed experimental and numerical investigation was carried out to examine the three-dimensional flow field, secondary flows and vortex motion in an annular compressor cascade. Various flow visualizations near the blade surface and endwalls, wall