On the Need for Thoroughly Validated Unsteady CFD in the Aerodynamic Optimisation of Aero Engine Compressors

• Autorzy: Ziegler K. U. , Engel K. , Kufner P. , Engber M. , Ernst M. , Niehuis R.
• Języki publikacji: EN

Abstrakty

EN

Unsteady 3D-Navier-Stokes calculations will more and more enter the aero design process of aero engine compressors, among other things, as there is a strong need to predict the impact of unsteady effects - e.g. rotor-stator interaction, clocking or casing-treatment - already in an early design phase. In this paper first a short review of the actual role of steady as well as unsteady CFD in the design process is given. Then a new research compressor is introduced, which has been especially designed for the validation of unsteady CFD codes, allowing a variation of rotor-stator spacing and vane clocking.

Słowa kluczowe

EN

compressor; rotor; stator; fluid flow

PL

sprężarka; wirnik; stojan; przepływ cieczy

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2005
• Tom: nr 128, vol. 2
• Strony: 605--614
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Ziegler K. U.

autor

Engel K.

autor

Kufner P.

autor

Engber M.

• MTU Aero Engines GmbH, Munich, Germany

autor

Ernst M.

autor

Niehuis R.

• RWTH Aachen, Institute of Jet Propulsion and Turbomachinery, Germany

Bibliografia

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• [4] Engel, K., Brouillet B., 2004, Internal Report, MTU Aero Engines.
• [5] Zachcial, A., 2001, “Detaillierte Analyse der instationären Strömung und Verlustproduktion in axialen Turbomaschinenstufen“, AG Turbo II report.
• [6] Smith L. H., 1970, “Casing Boundary Layers in Multistage Axial-Flow Com-pressors”, Flow Research in Blading, Elsevier Publishing C., Amsterdam.
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• [8] Schulz H. D., Gallus H. E., Lakshminarayana B., 1990, “Three-Dimensional Separated Flow Field in the Endwall Region of an Annular Compressor Cascade in the Presence of Rotor-Stator Interaction - Part I and II”, ASME Journal of Turbomachinery, Vol. 110.
• [9] Graf M. B., Greitzer E. M., Marble F. E., Sharma O. P., 1999, “Effects of Stator Pressure Field on Upstream Rotor Performance”, ASME paper 99-GT-99
• [10] Adamczyk, J. J., 1985, “Model Equation for Simulating Flows in Multistage Turbomachinery”, ASME paper 85-GT-226.
• [11] Eulitz, F., Engel K., Pokorny S., Faden M., 1994, “Validation of Different TVD Schemes for the Calculation of the Unsteady Turbomachinery Flow”, 14th Int. Conf. on Numerical Methods & Fluid Dynamics, Bangalore, India.
• [12] Nürnberger, D., Eulitz, F., Schmitt, S., Zachcial, A., 2001, “Recent Progress in the Numerical Simulation of Unsteady Viscous Multistage Turbomachinery Flow”, ISABE paper 2001-1081
• [13] Volmar, T., Brouillet, B., Gallus, H. E., Benetschik, H., 1998, "Time Accurate 3D Navier-Stokes Analysis of a 1-1/2 Stage Axial Flow Turbine", AIAA paper 98-3247.
• [14] Thermann, H., Schmidt, S., Weiß, C., Niehuis, R., 2001, "A CFD Package for the 3D Computation of Unsteady Flows in Turbomachines", Journal TASK Quarterly, Volume 5, Number 4.
• [15] Ziegler K. U., Gallus H. E., Niehuis R., 2003, “A Study on Impeller-Diffuser Interaction - Part I and II”, ASME Journal of Turbomachinery, Vol. 125.