Calculation of unsteady rotor-stator interaction in turbine stage harmonic balance

Mathematical Methods. Modeling. Experimental studies
Authors:
Grigoriev Alexey V. Yakunin Alexander I. Kuznechov Nikolay B. Kondratiev Vladimir F Kortikov Nikolay N.
Abstract:

This paper represents 3D flow in turbine cascade in which the harmonic balance method is applied for modeling stator – rotor interaction and pressure fluctuations near trailing edges. The harmonic balance method which is included in Star CCM+ code can simulate the whole unsteady flow at considerably reduced CPU costs. Computational results are compared with experimental results which show importance of unsteady effects.