Michael James Lighthill Pusan National University Department of Naval Architecture & Ocean Engineering Kim Min Il

Michael James Lighthill (1924-1998) He was born in Paris in 1924.  His father, Ernest Balzar Lighthill was a mining engineer who was working in Paris at the time his son was born. Lighthill was educated at Winchester College and, at the age of 15, he won a scholarship to Trinity College, Cambridge. However, he chose to wait until he was 17 years old before entering Trinity College which he did in 1941. He specialised in fluid dynamics, and worked at the National Physical Laboratory at Trinity. Between 1946 and 1959 he was Beyer Professor of Applied Mathematics at the University of Manchester. Born 23 January 1924 Paris, France Died 17 July 1924 (aged 74) National United Kingdom Known for Lighthill report Lighthill’s equation Lighthill’s 8 power law Lighthill’s mechanism Aeroacoustics Fluid dynamics 2019-04-16

Michael James Lighthill (1924-1998) Lighthill then moved from Manchester to become director of the Royal Aircraft Establishment at Farnborough. There he worked on the development of television and communications satellites, and on the development of manned spacecraft. This latter work was used in the development of the Concorde supersonic airliner. In 1964 he became the Royal Society's resident professor at Imperial College London. Before returning to Trinity College, Cambridge, five years later as Lucasian Professor of Mathematics, a chair he held until 1979, when he was succeeded by Stephen Hawking. He won a ‘Otto Laporte Award’ from American Physical Society (APS) in 1984. Born 23 January 1924 Paris, France Died 17 July 1924 (aged 74) National United Kingdom Known for Lighthill report Lighthill’s equation Lighthill’s 8 power law Lighthill’s mechanism Aeroacoustics Fluid dynamics 2019-04-16

Outstanding contribution to science Concorde supersonic airliner Lighthill's work at the Royal Aircraft Establishments was used in the development of the Concorde supersonic airliner. Kinematic waves, fluid and traffic flow In 1955, together with his doctoral student G. B. Whitham, Lighthill set out the first comprehensive theory of kinematic waves (an application of the method of characteristics), with a multitude of applications, prime among them fluid flow and traffic flow.  Aerofoil theory and supersonic flow around solids His early work included the two dimensional aerofoil theory and supersonic flow around solids of revolution. Shock and blast waves In addition to the dynamics of gas at high speeds he studied shock and blast waves. Aeroacoustics He founded the subject of aeroacoustics, a subject vital to the reduction of noise in jet engines. Lighthill's eighth power law states that the acoustic power radiated by a jet engine is proportional to the eighth power of the jet speed. He also was the father of non-linear acoustics, and showed that the same non-linear differential equations could model both flood waves in rivers and traffic flow in highways. 2019-04-16

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