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

2 2005

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Influence of a Mutual Clocking Position of Stators on Pressure Pulsation and Radiated Noise in Stator-Rotor-Stator of the Axial Compressor

Saren V. E., Savin N. M., Smirnow S. A., Kovalew D. V.

Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

2005

nr 128, vol. 2

479-486

Experimental and theoretical research results on influence of a mutual tangential position of stators in stator-rotor-stator of the axial compressor on pressure pulsations and upwards radiated noise are presented. At equal number of vanes in stators their optimum mutual tangential position allows to lower twice pressure pulsations on rotor blades. It results in essential decrease both exciting loadings and radiated noise.

Effects of a Circumferential Bowing of the Outlet Stator Vanes in a Stage of the Axial Compressor

Savin N. M., Saren V. E.

Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka

2005

nr 128, vol. 2

487-494

Results of measurement of flow parameters in a stage of the axial compressor at radial, crescent and sabre vanes of the outlet stator are presented. Essential influence of a circumferential bowing of the stator vanes on time-averaged rotor flow parameters is established at preservation of the effects connected to influence of a mutual tangential position of stators on the rotor blade pressure pulsations and generated noise.