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Acoustics takes the characteristics of the fluid and the structure containing the fluid. Hence the field of acoustics becomes quite vast depending on the generation, propagation and receiving of sound. The issues in acoustics research are hinged on these three interactive phenomena. Technology influences all the above three aspects and the field of acoustics and progress in research in these areas generally define the major issues in acoustics research. The following is an attempt to expand on the three aspects of acoustics and define the current and future issues in the field of acoustics. The issues include structural acoustics as in pressure vessels, piping systems, panels used in partitions, combustion noise, fluid structure interaction such as in turbine noise due to flow of pressurized gasses, blade vibrations in fluid flow environments, aeroelasticity of aircraft wings and helicopter rotors, drilling noise in machine shops, mining. Ultrasonic drilling is a done under the influence of ultrasound environment. Advances in micromechanics and nanomechanics have opened up an entirely new field of acoustic sensing to obtain many hitherto unexploited areas such as sound health monitoring of large industrial systems, environmental acoustics, community noise, building acoustics and sound conditioning of large halls, acoustic mapping of large structures and environmental noise scattering, etc. Medical acoustics is an extremely vast area including bioacoustics. Manufacturing environments have many uses such as condition monitoring, better design by understanding noise generation and propagation etc.
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