Detail publikace

NEW APPROACH TO THE NUMERICAL ANALYSIS OF THE SWIRL WATER TURBINE AND EXPERIMENTAL VERIFICATION

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

8

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"
}