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1 Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

1 2005

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

Ziegler K. U., Engel K., Kufner P., Engber M., Ernst M., Niehuis R.

Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

2005

nr 128, vol. 2

605--614

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.