Contribution
Underwater flow noise experiments with layered plate structures
* Presenting author
Abstract:
Interfering noise in the interior of a hydroacoustic antenna is generated by a surrounding turbulent boundary layer. The vibroacoustic excitation of the antenna hull from outer turbulent wall pressure fluctuations is an important mechanism for interior noise generation at practically relevant speeds of a sonar platform through water. Single and double-layer plate configurations are investigated at various towing speeds with respect to interior flow noise generation with a towed body measurement system in an underwater experiment. The experiment was conducted during a research cruise with FS Elisabeth Mann Borgese (IOW) in a deep Norwegian fjord.