Spouse Ruth Arion (m. 1954) Name Philip Saffman | ||
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Born Philip Geoffrey Saffman
19 March 1931
Leeds, England ( 1931-03-19 ) Institutions California Institute of Technology
Royal Air Force
University of Cambridge
King’s College, London Alma mater Roundhay Grammar School
University of Cambridge Doctoral students Keri Aivazis
Gregory Baker
Anatoly Baumstein
Francis Bretherton
James Buntine
Benito Charpentier
Antonio Crespo
Darren Crowdy
Donal Gallagher
James Gleeson
Seymour Goodman
David Hill
Dana Hobson
James Kamm
Doyle Knight
Michael Landman
Michael Lough
David Martin
Paul Mazaika
John McLean
Douglas Reinelt
Allen Robinson
Louis Romero
James Rotenberry
Barry Ryan
James Schatzman
John Sheffield
Jeffery Simmen
Saleh Tanveer
Tyan Yeh
Henry Yuen
Juan Zufiria Known for Saffman lift
Saffman turbulence
Saffman–Taylor finger
Saffman–Delbruck model
Vortex dynamics Died August 17, 2008, Los Angeles, California, United States Fields Fluid dynamics, Fluid mechanics Notable awards Otto Laporte Award, Royal Society | ||
Education University of Cambridge Doctoral advisor George Batchelor | ||
Philip Geoffrey Saffman FRS (19 March 1931 – 17 August 2008) was a mathematician and the Theodore von Kármán Professor of Applied Mathematics and Aeronautics at the California Institute of Technology.
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Education and early life
Saffman was born in Leeds, England, and educated at Roundhay Grammar School and Trinity College, Cambridge which he entered aged 15. He received his Bachelor of Arts degree in 1953, studied for Part III of the Cambridge Mathematical Tripos in 1954 and was awarded his PhD in 1956 for research supervised by George Batchelor.
Career and research
Saffman started his academic career as a lecturer at the University of Cambridge, then joined King's College London as a Reader. Saffman joined the Caltech faculty in 1964 and was named the Theodore von Kármán Professor in 1995. According to Dan Meiron, Saffman "really was one of the leading figures in fluid mechanics," and he influenced almost every subfield of that discipline. He is known (with his co-author Geoffrey Ingram Taylor) for the Saffman–Taylor instability in viscous fingering of fluid boundaries, a phenomenon important for its applications in enhanced oil recovery, and for the Saffman–Delbrück model of protein diffusion in membranes which he published with his Caltech colleague and Pasadena neighbour Max Delbrück. He made important contributions to the theory of vorticity arising from the motion of ships and aircraft through water and air; his work on wake turbulence led the airlines to increase the minimum time between takeoffs of aircraft on the same runway. Saffman also studied the flow of spheroidal particles in a fluid, such as bubbles in a carbonated beverage or corpuscles in blood; his work overturned previous assumptions that inertia was an important factor in these particles' motion and showed instead that Non-Newtonian properties of fluids play a significant role.
Along with his many research papers, Saffman wrote a book, Vortex Dynamics, surveying a field to which he had been a principal contributor. Russel E. Caflisch writes that "This book should be read by everyone interested in vortex dynamics or fluid dynamics in general."
Awards and honours
Saffman was elected a Fellow of the American Academy of Arts and Sciences and a Fellow of the Royal Society in 1986, and the recipient of the American Physical Society's Otto Laporte Award. His nomination for the Royal Society reads:
Personal life
Saffman was survived by his wife (Ruth Arion whom he married in 1954), three children (Mark, Louise, Emma), and eight grandchildren (Timothy, Gregory, Rae, Jenny, Nadine, Aaron, Miriam, Alexandra and Andre).