Geïnstalleerd op: 
7 March 1997
Professor J.L. van Ingen (1932) graduated in 1954 from the Department of Aeronautical Engineering at Delft University of Technology. During his studies, in 1952, he was a student-assistant occupied with the development of a research program for the low-speed-low-turbulence wind tunnel that had just been finished. A long-lasting research program on viscous flows was established with special emphasis on boundary layer control for drag reduction and high lift augmentation. In 1966, he obtained his Ph.D at the TU Delft with a research project on boundary layer laminarisation by suction. The academic year 1966-1967 was spent at the Lockheed Georgia Research Lab where he performed pioneering research on the use of Computer Graphics for airfoil designing. After his return in Delft, this experience led to a two-track research program, combining the basic research of staff and students in viscous flows with that of design oriented student- and staff projects. At the TU Delft he held various positions such as assistant-, associate- and full professor. In recognition of his contributions to boundary layer research, in 1996, he was invited by the German GAMM ( Gesellschaft für Angewandte Mathematik und Mechanik) and DGLR (Deutsche Gesellschaft für Luft- und Raumfahrt) to present the prestigious Prandtl Memorial Lecture. This lecture with the title “Looking back at 40 years of teaching and research in Ludwig Prandtl’s heritage of boundary layer flows“ gives a good summary of the research performed by him and his associates. In addition to teaching and research, he made important contributions to the management of the Faculty, as the Dean( 1972-1974), vice-Dean (1986-1991) and again Dean(1991-1997). An important occurrence in his last period as Dean was the demise of Fokker (1996) that threatened to have a large negative effect on the Faculty. This crisis was luckily overcome and Delft Aerospace managed to remain one of the leading European Aerospace Engineering Faculties. After his formal retirement in 1997, he remained active for several more years in representing the Faculty in international post graduate programs such as ECATA and SpaceTech. During his active years at the University he had taken part in various EU projects. Up until this day, he continues his support to the European Union by acting as reviewer for research projects such as AWIATOR and AVERT. Moreover he has led important EU studies such as the “Education Study” on the future of European Aerospace Engineering Education and an “Accreditation Study” on possible future accreditation systems for European Aerospace Engineering Faculties/Departments.