Instability of Flow over a Surface

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• Dr Ed Brambley, DAMTP
• Friday 08 November 2013, 13:00-14:00
• LR3B, Inglis Building, CUED .

If you have a question about this talk, please contact Dr Henry Burridge.

Aircraft engines typically include acoustic linings designed to absorb sound. Since experimental tests on aircraft engines are rather expensive, simple mathematical models have been used since the 1960s to predict the performance of these acoustic linings, and more recently numerical simulations have supplemented these. However, a fundamental problem was recently discovered with the model used for acoustic linings (concerning stability). This fundamental problem also has connotations for flow over any non-rigid surface.

In this talk, I will explain the fundamental problem, why we should care about it, and what can be done to get around it.

This talk is part of the Fluid Mechanics (CUED) series.

This talk is included in these lists:

• Acoustics Lab Seminars
• Engineering Department Acoustics/Combustion Student seminars
• Fluid Mechanics (CUED)
• LR3B, Inglis Building, CUED

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