| EPSRC Reference: |
GR/M21560/01 |
| Title: |
AN INVESTIGATION OF UNSTEADY FLOW FIELD AND NOISE RADIATION FROM HIGH-LIFT DEVICES |
| Principal Investigator: |
Zhang, Professor X |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Faculty of Engineering & the Environment |
| Organisation: |
University of Southampton |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 March 1999 |
Ends: |
28 February 2002 |
Value (£): |
150,431
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| EPSRC Research Topic Classifications: |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
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Summary on Grant Application Form |
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The proposed project investigates the unsteady fluid flow around high lift devices (a leading-edge slat and a single element trailing-edge flap) on a two-dimensional wing at high incidence. The unsteady flow field involved is characterised by flow separation, shear layer instabilities, vortex production and convection, interaction between vortices and geometry, vortex shedding, and possible pressure feedback. It represents a source of far-field noise radiation. The proposed method is the solutions of short-time Trynolds averaged Navier-Stokes equations (TRANS) in the near field and assessment of the far-field noise using Lighthill's acoustic analogy. A wind tunnel experiment will also be performed to provide a near-field unsteady flow database. The proposed method represents a timely and achievable approach in assessing the noise generation mechanism of large vortical structures and their interaction with aerodynamic geometry. In analysing the unsteady flow field and the noise generation mechanism, methods will be studied in order to achieve reduction of noise and/or flow oscillation.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.soton.ac.uk |