Sonic Characterisation of Water Surface Waves, Turbulence, Mixing and Bed Friction in Shallow Water Flows
Lead Research Organisation:
The Open University
Department Name: DDEM
Abstract
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Publications
Nichols A
(2011)
Deduction of static surface roughness from complex excess attenuation.
in The Journal of the Acoustical Society of America
| Description | Up to moderate filling fractions measurements of forward scatter such as excess attenuation spectra together with a boss model of the acoustical effects of surface roughness can be used to determine the roughness characteristics. |
| Exploitation Route | The method was developed using data obtained at audio-frequencies and centimetre scale roughness but could be extended to other roughness scales by using appropriate frequency ranges. |
| Sectors | Aerospace, Defence and Marine,Manufacturing, including Industrial Biotechology |
| Description | We explored a particular model for predicting roughness effects on forward sound scattering from a rough surface which would be particularly useful at audible frequencies. The main research team at Bradford tried this approach but eventually preferred an ultrasonic back scattering method for the rough water surfaces of main interest in the project. |
| First Year Of Impact | 2012 |
| Sector | Environment |