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MALENOVSKÝ, E. POCHYLÝ, F. RUDOLF, P. POHANKA, L. CHLUD, M.
Originální název
NEW APPROACH TO THE NUMERICAL ANALYSIS OF THE SWIRL WATER TURBINE AND EXPERIMENTAL VERIFICATION
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
This paper is focused on the nonlinear analysis of the dynamic behavior of a fluid-structure interaction. The innovative mathematical model presented here includes a new type of boundary condition and allows modal analysis and the steady state or the unsteady responses. Our new method is based on the determination of boundary condition by defining special convolutory integrals for the fluid velocity and the pressure and their expansion into the series of eigenmodes of a structure vibration. This approach allows the separation of the structure and the fluid from each other. We applied this method to analyze the modal behavior of a swirl turbine, using the ANSYS and FLUENT program systems. The added mass, damping coefficients were calculated as influence of a fluid and structure interaction. These added effects were combined with an elastic rotor system. Several experimental investigations were made in parallel to the calculation models. The computational analyses and the experimental results show relatively good agreement. Our calculation method can find many technical applications, e.g. the solution of blades or rotors vibrations in centrifugal pumps or water turbines
Klíčová slova
Fluid-structure interaction, Finite element method, Boundary condition method, Added, mass, damping, stiffness
Autoři
MALENOVSKÝ, E.; POCHYLÝ, F.; RUDOLF, P.; POHANKA, L.; CHLUD, M.
Rok RIV
2010
Vydáno
9. 9. 2010
Nakladatel
KIST Seoul
Místo
Seoul, Korea
ISBN
978-89-5708-187-7
Kniha
IFToMM Rotordynamics 2010
Strany od
1
Strany do
8
Strany počet
BibTex
@inproceedings{BUT34598, author="Eduard {Malenovský} and František {Pochylý} and Pavel {Rudolf} and Lukáš {Pohanka} and Michal {Chlud}", title="NEW APPROACH TO THE NUMERICAL ANALYSIS OF THE SWIRL WATER TURBINE AND EXPERIMENTAL VERIFICATION", booktitle="IFToMM Rotordynamics 2010", year="2010", pages="1--8", publisher="KIST Seoul", address="Seoul, Korea", isbn="978-89-5708-187-7" }