Hans Wolfgang Liepmann (July 3, 1914 – June 24, 2009) was an American fluid dynamicist, aerospace scientist and emeritus Theodore von Kármán Professor of Aeronautics at the California Institute of Technology."Hans Liepmann" at the

GALCIT The Guggenheim Aeronautical Laboratory at the California Institute of Technology (GALCIT), was a research institute created in 1926, at first specializing in aeronautics research. In 1930, Hungarian scientist Theodore von Kármán accepted the di ...

at caltech.edu. Retrieved May 14, 2009: New link se
here
. Accessed Oct 27, 2009. He is known for his numerous contributions in fluid mechanics covering a wide range of problem areas, such as flow instability and turbulence, gas kinetics, viscous compressible fluids and liquid helium flows.1980 Fluid Dynamics Prize Recipient
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Academic history

Hans Liepmann received a Dr.Ing.h.c. from the

University of Aachen RWTH Aachen University (), also known as North Rhine-Westphalia Technical University of Aachen, Rhine-Westphalia Technical University of Aachen, Technical University of Aachen, University of Aachen, or ''Rheinisch-Westfälische Technische Hoch ...

and a Ph.D. from the University of Zurich in 1938. In 1939 Liepmann joined Theodore von Kármán at Caltech as a Research Fellow in

Aeronautics Aeronautics is the science or art involved with the study, design, and manufacturing of air flight–capable machines, and the techniques of operating aircraft and rockets within the atmosphere. The British Royal Aeronautical Society identifies ...

. He became Assistant Professor of Aeronautics in 1945, Associate Professor in 1946 and Professor from 1949 to 1974. From 1974 to 1976 he was Professor of Aeronautics and Applied Physics, from 1976 to 1983 Charles Lee Powell Professor of Fluid Mechanics and Thermodynamics and 1984-85 von Kármán Professor of Aeronautics. From 1972 to 1985 Liepmann was Director of the Guggenheim Aeronautical Laboratory and Executive Officer for Aeronautics from 1976 to 1985. He retired in 1985, but remained the emeritus von Kármán Professor at Caltech. Liepmann received several awards, a selection: * 1968:

Ludwig-Prandtl-Ring The Ludwig Prandtl Ring is the highest award of the Deutsche Gesellschaft für Luft- und Raumfahrt (German Society for Aeronautics and Astronautics), awarded "for outstanding contribution in the field of aerospace engineering". The award is named ...

from

Deutsche Gesellschaft für Luft- und Raumfahrt German Society for Aeronautics and Astronautics (DGLR; german: Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.) is a German aerospace society. It was founded in 1912 under the name of ''Wissenschaftliche Gesellschaft für ...

* 1980: Fluid Dynamics Prize by the

American Physical Society The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of k ...

* 1985:

Otto Laporte Award The Otto Laporte Award (1972–2003) was an annual award by the American Physical Society (APS) to "recognize outstanding contributions to fluid dynamics" and to honour Otto Laporte (1902–1971). It was established as the Otto Laporte Memorial ...

by the

* 1986: National Medal of Science * 1986:

Daniel Guggenheim Medal The Daniel Guggenheim Medal is an American engineering award, established by Daniel and Harry Guggenheim. The medal is considered to be one of the greatest honors that can be presented for a lifetime of work in aeronautics. Recipients have include ...

* 1993: National Medal of Technology for "Outstanding research contributions to the field of fluid mechanics"

Books

* 1957: (with

Anatol Roshko __NOTOC__ Anatol Roshko (15 July 1923 – 23 January 2017) was a Canadian-born physicist and engineer. He was the Theodore von Kármán Professor of Aeronautics, Emeritus, at the California Institute of Technology, Pasadena, CA. Roshko is known f ...

) ''Elements of Gas Dynamics'', John Wiley & Sons, Dover Publications (2002) * 1947: (with Allen E. Puckett) ''Introduction to Aerodynamics of a Compressible Fluid'', John Wiley & Sons

References

External links

Hans W. Liepmann
at the American Institute of Physics *
Passings: Hans W.Liepmann, longtime Caltech professor
from Los Angeles Times {{DEFAULTSORT:Liepmann, Hans W. 1914 births 2009 deaths 20th-century American engineers California Institute of Technology faculty National Medal of Technology recipients National Medal of Science laureates Fluid dynamicists Members of the United States National Academy of Sciences Fellows of the American Physical Society Ludwig-Prandtl-Ring recipients