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Unsteady flow phenomena such as impeller-diffuser interaction are considered to have a strong influence on the performance of highly loaded centrifugal compressors. The paper summarizes results of investigations performed at the Institute of Jet Propulsion and Turbomachinery at RWTH Aachen with an engine like centrifugal compressor, featuring a design pressure ratio of 4 and a design speed of 35200 rpm. Particular attention was directed to the influence of the radial gap because it is a major design parameter influencing the intensity of the impeller-diffuser interaction.
Słowa kluczowe
Rocznik
Tom
Strony
389--404
Opis fizyczny
Bibliogr. 27 poz.
Twórcy
autor
- Institute of Jet Propulsion and Turbomachinery, RWTH Aachen, Germany
autor
- MTU Aero Engines GmbH, Munich, Germany
Bibliografia
- [1] Benetschik H., Lohmann, A., Luecke, J.R., Gallus H.E., 1996: Inviscid and Viscous Analysis of Three-Dimensional Turbomachinery Flows Using an Implicit Upwind Algorithm. AIAA 96-2556.
- [2] Brouillet, B., Benetschik, H., Volmar, T., Gallus, H.E., Niehuis, R., 1999: "3D Navier-Stokes Simulation of a Transonic Flutter Cascade near Stall Conditions". in Tamaru T. (ed.), Proceedings of the Int. Gas Turbine Congress Kobe, Japan, no. 1, pp. 511-518.
- [3] Chien, K.Y., 1982, "Prediction of Channel and Boundary-Layer Flows with a Low-Reynolds-Number Turbuelnce Model", AIAA Journal, 020 (2).
- [4] Chriss, R.M., Hathaway, M.D., Wood J.R., 1994, "Experimental and Computational Results from the NASA Lewis Low-Speed Centrifugal Impeller at Design and Part Flow conditions", ASME Paper 94-GT-213.
- [5] Eckardt D., 1976, "Detailed Flow Investigations within a High-Speed Centrifugal Compressor Impeller", ASME Journal of Fluids Engineering, Vol. 98.
- [6] Fradin, C., 1988, “Detailed Measurements of the Flow in the Vaned Diffuser of a Backswept Transonic Centrifugal Impeller”, ICAS-88-2.6.2, 16th ICAS, Jerusalem.
- [7] Fradin, C., Janssens, G., 1990, “Detailed Measurements of the Flow Field at the Outlet of a Backswept Transonic Centrifugal Impeller Equipped with a Vaned Diffuser”, ASME Cogen Turbo Power, pp. 249-254.
- [8] Hathaway, M.D., Chriss, R.M., Wood, J.R., Strazisar, A.J.,1993, "Experimental and Computational Investigation of the NASA Low-Speed Centrifugal Compressor", ASME J. of Turbomachinery, Vol. 115, pp. 527-542, 1993.
- [9] Hoffmann, A.P., Grates, D.R., Niehuis, R., 2005, "Numerische Untersu-chung zur Laufrad-Leitrad Interaktion in einem Radialverdichter mit Keilschau-feldiffusor", to be published at DGLR Jahrestagung.
- [10] Inoue, M., Cumpsty, N.A., 1984, “Experimental Study of Centrifugal Impeller Discharge Flow in Vaneless and Vaned Diffusers”, ASME Journal of Engineering for Gas Turbines and Power, Vol. 106, pp. 455-467.
- [11] Justen, F., Ziegler, K.U., Gallus, H.E.,1999, “Experimental Investigation of Unsteady Flow Phenomena in a Centrifugal Compressor Vaned Diffuser of Variable Geometry”, ASME J. of Turbomachinery, Vol. 121, pp. 763-771.
- [12] Krain, H., 1981, “A Study on Centrifugal Impeller and Diffuser Flow”, ASME Journal of Engineering for Power, Vol. 103, pp. 688-697.
- [13] Krain, H., 1984, “Experimental Observations of the Flow in Impellers and Diffusers”, VKI Lecture Series 1984-07.
- [14] Krain, H., 1988, “Swirling Impeller Flow”, ASME Journal of Turbomachinery, Vol. 110, pp. 122-128.
- [15] Krain, H., 1999, “High Pressure Ratio Centrifugal Compressor with Transonic Flow”, FEDSM99-7801.
- [16] Niehuis, R., Ziegler, K.U., Ubben, S., 2004, "Experimental Investigation of Impeller-Diffuser Interaction Phenomena in Centrifugal Compressor". IS-ROMAC-10-2004-078.
- [17] Pinarbasi, A., Johnson M.W., 1996, "Reynolds Stress tensor Measurements in a Centrifugal Compressor Vaned Diffuser", ASME Paper 96-GT-228
- [18] Reinmoeller U., Stephan, B., Schmidt, S., Niehuis, R., 2002, "Clocking Effects in a 1.5 Stage Axial Turbine - Steady and Unsteady Experimental Investigations supported by Numerical Simulations". Journal of Turbo-machinery, vol. 124 issue 1, pp. 52-60.
- [19] Rothstein, M., 1993 “Entwicklung und experimentelle Untersuchung eines Radialverdichters mit beschaufeltem Diffusor variabler Geometrie”, Doctoral Thesis, RWTH Aachen.
- [20] Runstadler, P., Dolan, F., Dean, R., 1975, “Diffuser Data Book”, CREARE Technical Note 186.
- [21] Schodl, R., 1981, “Verfahren und Programm zur Auswertung der von einem L2F-Geschwindigkeitsmessgeraet gelieferten Messdaten”, Internal Report IB 325/2/1981, Institut fuer Antriebstechnik, DFVLR Koeln.
- [22] Stahlecker, D., Gyarmathy, G., 1998, "Investigation of Turbulent Flow in a Centrifugal Compressor Vaned Diffuser by 3-Component Laser Velocimetry", ASME Paper 98-GT-300.
- [23] Stahlecker D., 2000, “Untersuchung der instationären Strömung eines be-schaufelten Radialverdichterdiffusors mit einem Laser-Doppler-Anemometer”, Doctoral Thesis ETH Zuerich Nr. 13228, Verlag Mainz Aachen.
- [24] Thermann, H., Schmidt, S., Weiss, C., Niehuis, R., 2001, "A CFD Package for the 3D Navier-Stokes Computation of Unsteady Flows in Turbomachines", Seminar/Summer School on CFD for Turbomachinery Applications, 1-3.9.2001, Gdansk, Poland.
- [25] Ziegler, K.U., Justen, F., Rothstein, M., Gallus, H.E., Niehuis, R., 2000, “Research on a Centrifugal Compressor of Variable Geometry”, Proceedings, 15th Int. Compressor Eng. Conference at Purdue University, West Lafayette.
- [26] Ziegler, K.U., Gallus, H.E., Niehuis, R., 2003, "A Study on Impeller-Diffuser Interaction - Part I: Influence on Performance", ASME Journal of Turbomachinery, Vol. 125, pp. 173-182.
- [27] Ziegler, K.U., Gallus, H.E., Niehuis, R., 2003, "A Study on Impeller-Diffuser Interaction - Part II: Detailed Flow Analysis", ASME Journal of Turbomachinery, Vol. 125, pp. 183-192.
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-LOD5-0007-0009