John Ffowcs Williams

John ( Shon ) Eirwyn Ffowcs Williams, ( born 1935 in Wales ) is a British engineering scientists. He gained particular notoriety in the field of aero-acoustics, including through which together with one of his students, David L. Hawkings formulated Ffowcs Williams - Hawkings ( FW -H ) equation, describing an acoustic analogy.

Shon had two brothers. When he was five years old, his mother died. Without knowledge he was sent to a Quaker school in North Yorkshire. At the age of 16 he left school to pursue an engineering internship at Rolls- Royce. Early on, he concentrated on the flow machines. His other stops were, inter alia, the University of Southampton, Imperial College, London, where he held the Rolls- Royce Chair of Theoretical aeroacoustics and the University of Cambridge, where he headed the Department of Engineering Sciences with a focus on acoustics from 1972 until his retirement.

During his teaching career, it was always very important to him to align the scientific research and teaching of industrial problems. He was therefore always also industrienah operate; e.g. he founded the Cambridge company Topexpress Ltd.. , a consulting company that deals specifically with acoustic problems in the art, was a senior advisor to Rolls -Royce and director of the Marine Technology Developer VSEL plc.

He became particularly famous in numerical aeroacoustics by formulating a theory on the building of Lighthill acoustic analogy which allows generated by flow around bodies aero-acoustic sounds to a combination of monopole, dipole and Quadrupolquellen due. Certain notoriety he achieved through his leading role in reducing the noise of the Concorde engines.