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Aerodynamics and aeroacoustics of slat tracks

Aerodynamics and aeroacoustics of slat tracks
Aerodynamics and aeroacoustics of slat tracks
An overview on the progress of the research work on the aerodynamics and aeroacoustics of a three-dimensional multi-element wing with slat track is presented. A two step computational procedure which involves the solution of Navier-Stokes equations in the first-step and an integral surface solution of the Ffowcs-Williams and Hawkings equation in the subsequent step, is used to predict the far-field noise. Two main approaches are used for the computational work in this project. Firstly, the simulations based on the Linearized Euler Equations and the Acoustic Perturbation Equations are used in two- and three-dimensions to understand the effect of the slat track on the acoustic wave propagation. Dipoles and quadrupole are used as the simulated acoustic source. Also the effect of the mean flow in the wave propagation is studies by including a background mean flow in the APE simulations. An integral solution of FW-H equation is used for the far-field acoustic prediction after the source computation. The results are analysed and the future work is proposed.
Khanal, Bidur
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Khanal, Bidur
dacf0f2c-04b2-4976-9d64-b998be8620fc
Zhang, Xin
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Chernyshenko, Sergei
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Khanal, Bidur (2009) Aerodynamics and aeroacoustics of slat tracks. University of Southampton, School of Engineering Sciences, Masters Thesis, 84pp.

Record type: Thesis (Masters)

Abstract

An overview on the progress of the research work on the aerodynamics and aeroacoustics of a three-dimensional multi-element wing with slat track is presented. A two step computational procedure which involves the solution of Navier-Stokes equations in the first-step and an integral surface solution of the Ffowcs-Williams and Hawkings equation in the subsequent step, is used to predict the far-field noise. Two main approaches are used for the computational work in this project. Firstly, the simulations based on the Linearized Euler Equations and the Acoustic Perturbation Equations are used in two- and three-dimensions to understand the effect of the slat track on the acoustic wave propagation. Dipoles and quadrupole are used as the simulated acoustic source. Also the effect of the mean flow in the wave propagation is studies by including a background mean flow in the APE simulations. An integral solution of FW-H equation is used for the far-field acoustic prediction after the source computation. The results are analysed and the future work is proposed.

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Published date: April 2009
Organisations: University of Southampton

Identifiers

Local EPrints ID: 71686
URI: http://eprints.soton.ac.uk/id/eprint/71686
PURE UUID: 26d71035-32f8-4a18-80c4-949cdfbb9575

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Date deposited: 17 Dec 2009
Last modified: 13 Mar 2024 20:39

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Contributors

Author: Bidur Khanal
Thesis advisor: Xin Zhang
Thesis advisor: Sergei Chernyshenko

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