Stapp, D. ; Pelz, P. F. ; Loens, J. M. (2013)
On Part Load Recirculation of Pumps and Fans - A Generic Study.
6th International Conference on Pumps and Fans with Compressors and Wind Turbines (ICPF2013). Beijing, China (19.-22.09.)
doi: 10.1088/1757-899X/52/2/022003
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
At part load in turbo machinery, there is a boundary layer separation resulting in a large vortex structure called part load recirculation. Up to now the influence of Reynolds number, relative roughness and degree of turbulence on this important stability limit of machines is not sufficiently understood. To shed some light onto these phenomena, in this work the simplest "machine" is considered by numerical and experimental studies. The apparatus we examine is a circular pipe at rest followed by a rotating co-axial pipe segment. By doing so, we have a generic test case which serves to study the critical flow number, defined by the onset of the separation and formation of a ring vortex.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Stapp, D. ; Pelz, P. F. ; Loens, J. M. |
| Art des Eintrags: | Bibliographie |
| Titel: | On Part Load Recirculation of Pumps and Fans - A Generic Study |
| Sprache: | Englisch |
| Publikationsjahr: | September 2013 |
| Ort: | Peking, China |
| Verlag: | IOP |
| Veranstaltungstitel: | 6th International Conference on Pumps and Fans with Compressors and Wind Turbines (ICPF2013) |
| Veranstaltungsort: | Beijing, China |
| Veranstaltungsdatum: | 19.-22.09. |
| DOI: | 10.1088/1757-899X/52/2/022003 |
| Kurzbeschreibung (Abstract): | At part load in turbo machinery, there is a boundary layer separation resulting in a large vortex structure called part load recirculation. Up to now the influence of Reynolds number, relative roughness and degree of turbulence on this important stability limit of machines is not sufficiently understood. To shed some light onto these phenomena, in this work the simplest "machine" is considered by numerical and experimental studies. The apparatus we examine is a circular pipe at rest followed by a rotating co-axial pipe segment. By doing so, we have a generic test case which serves to study the critical flow number, defined by the onset of the separation and formation of a ring vortex. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Fluidsystemtechnik (FST) (seit 01.10.2006) |
| Hinterlegungsdatum: | 10 Okt 2013 11:31 |
| Letzte Änderung: | 02 Jun 2023 08:41 |
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