Publication detail
ANALYSIS OF PRESSURE PULSATIONS OF CAVITATING FLOW IN CONVERGING-DIVERGING NOZZLE
KOZÁK, J. RUDOLF, P. ŠTEFAN, D. HUDEC, M. GRÍGER, M.
English title
ANALYSIS OF PRESSURE PULSATIONS OF CAVITATING FLOW IN CONVERGING-DIVERGING NOZZLE
Type
Paper in proceedings (conference paper)
Language
en
Original abstract
Cavitating flow in converging-diverging nozzle (axisymmetric Venturi tube) is investigated. Characterization of the cavitating flow was done with high speed camera and the basic flow patterns were determined: incipient cavitation, partial cavitation, fully developed cavitation and supercavitation. Pressure transducers of tenzometric and piezoelectric types were used to determine amplitude-frequency characteristics of the pressure pulsations in particular regimes. Results were correlated with spectral properties obtained from high-speed camera video sequences and image processing analysis. Finally, attempt of unsteady cavitating flow CFD simulation is presented.
Keywords in English
Cavitation; CFD; OpenFoam; Venturi tube; Vortex ring; FFT
Released
2015-09-09
ISBN
978-961-6770-31-6
Book
Cavitation and dynamic problems – IAHRWG 2015 – Proceedings
Pages from–to
10–19
Pages count
9
BIBTEX
@inproceedings{BUT117617,
author="Jiří {Kozák} and Pavel {Rudolf} and David {Štefan} and Martin {Hudec} and Milan {Gríger}",
title="ANALYSIS OF PRESSURE PULSATIONS OF CAVITATING FLOW IN CONVERGING-DIVERGING NOZZLE",
booktitle="Cavitation and dynamic problems - IAHRWG 2015 - Proceedings",
year="2015",
series="1",
pages="10--19",
isbn="978-961-6770-31-6"
}