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|Title:||Understanding of the flow behaviour on a Helmholtz resonator excited by grazing flow|
|Citation:||International Journal of Computational Fluid Dynamics, 2014; 28(5):219-231|
|Publisher:||Taylor & Francis|
|Farzin Ghanadi, Maziar Arjomandi, Benjamin Cazzolato and Anthony Zander|
|Abstract:||In this study, a large eddy simulation of the three-dimensional shear flow over a flow-excited Helmholtz resonator has been implemented. The simulations have been performed over a wide range of flow speeds to analyse the effect of the inlet flow properties on the excitation condition. For validation proposes, the results obtained from the numerical simulations have been compared with published experimental data and show that numerical modelling provides an accurate representation of the pressure fluctuations inside the cavity. The main objective of this paper is to gain an understanding of the flow features over a flow-excited Helmholtz resonator. To this end, using the numerical model, the interaction of a turbulent boundary layer with a Helmholtz resonator has been considered, and the characteristics of the flow inside the resonator and over the orifice for various flow conditions are also analysed.|
|Keywords:||Helmholtz resonator; large eddy simulation; turbulent boundary layer; flow-excited resonance; grazing flow|
|Rights:||© 2014 Taylor & Francis|
|Appears in Collections:||Aurora harvest 3|
Mechanical Engineering publications
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