Comparison of the 2d and 3d models of flutter of a palisade in an inviscid flow

• Autorzy: Rządkowski R. , Gnesin V. , Kovalyov A
• Konferencja: International Conference SYMKOM '99. Compressor & Turbine Stage Flow Path Theory, Experiment & User Verification (1999 ; Łódź, Polska)
• Języki publikacji: EN

Abstrakty

EN

In recent years the works of the coupled fluid-structure problems appeared. The computational method used to solve this problem was based on a time-marching algorithm, so it was natural to consider a time domain flutter analysis method. The time domain method of flutter analysis is based on the simultaneous integration in time of the equation of motion for the structure and the fluid. In this work the comparison of the 2D and 3D Flutter results for the turbine cascade (IV Configuration) is shown. It was observed that the negative aerodamping coefficient calculated for the harmonic oscillation are not sufficient condition for growing oscillation during fluid-structure interaction.

Słowa kluczowe

EN

flutter analysis; oscillation; inviscid flow

PL

metoda analizy; oscylacja; porównanie modeli; przepływ nielepki

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 1999
• Tom: nr 115
• Strony: 349--356
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Rządkowski R.

• Department of Dynamics of Machines, Institute of Fluid Flow Machinery Poland Academy of Sciences J. Fiszera st., 14, Gdansk 80 952 POLAND

autor

Gnesin V.

• Department of Aerohydromechanics, Institute for Problems in Machinery Ukrainian National Academy of Sciences 2/10 Pozharsky st ., Kharkov 310046 UKRAINE

autor

Kovalyov A

• Department of Aerohydromechanics, Institute for Problems in Machinery Ukrainian National Academy of Sciences 2/10 Pozharsky st., Kharkov 310046 UKRAINE