Velocity Fluctuations within the Turbulent Flow over a Flow-excited Helmholtz Resonator

Simple item page
dc.contributor.authorGhanadi, F.
dc.contributor.authorArjomandi, M.
dc.contributor.authorZander, A.
dc.contributor.authorCazzolato, B.
dc.date.issued2013
dc.description.abstractAn unstable turbulent shear layer over a Helmholtz resonator can produce strong pressure fluctuations within the resonator at the resonance frequency. These pressure fluctuations are responsible for generating flow oscillations over the orifice. Understanding of this process requires an appropriate model to predict the characteristics of the grazing flow over a three dimensional resonator. In this paper using a Large Eddy Simulation (LES) of the three dimensional shear flow over a flow-excited resonator, the amplitude and frequency of the velocity fluctuations have been predicted. The simulation results were compared with an experimental study and proved the high accuracy of the model to calculate flow characteristics over the resonator. All simulations were carried out at a subsonic regime for various flow inlet conditions. The results were used to predict the effects of the free stream velocity and the thickness of the turbulent boundary layer on velocity fluctuations within the shear layer.
dc.description.statementofresponsibilityF. Ghanadi, M. Arjomandi, A. C. Zander and B. S. Cazzolato
dc.description.urihttp://www.mecheng.adelaide.edu.au/avc/publications/abstract.php?abstract=1169
dc.identifier.citationProceedings of the World Academy of Science, Engineering and Technology, 2013; 79(201):1560-1565
dc.identifier.issn2010-3778
dc.identifier.orcidArjomandi, M. [0000-0002-7669-2221]
dc.identifier.orcidZander, A. [0000-0003-4099-8146]
dc.identifier.orcidCazzolato, B. [0000-0003-2308-799X]
dc.identifier.urihttp://hdl.handle.net/2440/82555
dc.language.isoen
dc.publisherWASET
dc.rightsCopyright status unknown
dc.subjectSelf-excited Helmholtz resonator
dc.subjectlarge eddy simulation
dc.subjectvelocity fluctuations
dc.subjectshear layer
dc.titleVelocity Fluctuations within the Turbulent Flow over a Flow-excited Helmholtz Resonator
dc.typeJournal article
pubs.publication-statusPublished

Files

Collections

Mechanical Engineering conference papers