The energy generated by wind turbines is an established source of renewable energy contributing increasingly to total worldwide electricity supply. One of the obstacles in the development of wind turbine industry is low frequency noise that propagates over large distances and affects people adversely. The project tackles this problem via implementation of additional sound sources that generate “anti-noise” [1-4]. For the first time, this approach will be studied in relation to wind turbines. The low frequency noise can be effectively reduced with the use of active control via introducing secondary sources or controls. The input information practically available for the controls is very limited. It is obtained from sensors, which are discretely distributed, whilst the measured acoustic field can contain sound from desired sources including the controls. Meanwhile, there are novel and very efficient methods for low dimension approximation of highly dimensional stochastic systems . These techniques will be implemented in the active control to make it much more realistic for the use in industry.
Students with a First class/2.1 degree in Engineering, Physics, or Mathematics subjects are encouraged to apply. A prior knowledge on gas turbine engineering and an MSc in a related field would also be desirable (but not essential). Experience in computer programming would also be preferable.
1. Utyuzhnikov, S V., "Non-stationary problem of active sound control in bounded domains,. J. of Computational and Applied Mathematics, 2010, 234 (6): 1725-1731.
2. Utyuzhnikov, S.V., “Real-time active wave control with preservation of wanted field”, IMA J. Applied Mathematics, 2014, 79: 1126-1138.
3. Lim H., Utyuzhnikov S V, Lam Y.W., Kelly L., "Potential-based methodology for active sound control in three dimensional settings", J. of the Acoustical Society of America, 2014, 136 (3): 1101-1111.
4. Lim, H., Utyuzhnikov, S. V., Lam, Y. W., Turan, A., "Multi-domain active sound control and noise shielding", J. of Acoustical Society of America, 2011, 129 (2): 717-725.
5. Lim, H., Utyuzhnikov, S. V., Lam, Y. W., Turan, A., Avis, M. R., Ryaben'kii, V. S., Holmes, P., Lumley, J.L., Berkooz, G., Rowley, C.W., Turbulence, Coherent Structures, Dynamical Systems and Symmetry. Cambridge, UK: Cambridge Univ Press; 2012.