| Hans W. Liepmann | |
| Birth Date: | 3 July 1914 |
| Birth Place: | Berlin, Kingdom of Prussia, German Empire |
| Death Place: | La Cañada Flintridge, California |
| Work Institutions: | California Institute of Technology |
| Alma Mater: | Universität Zürich |
| Thesis Title: | The sound velocity in liquid oxygen as a function of the boiling temperature at frequencies of 7.5 and 1.5 × 10 6 Hz Hz |
| Thesis Year: | 1938 |
| Doctoral Advisor: | Richard Bär |
| Doctoral Students: | Stanley Corrsin Frank E. Marble Satish Dhawan Arthur E. Bryson Anatol Roshko Roddam Narasimha |
Hans Wolfgang Liepmann (July 3, 1914 – June 24, 2009) was an American fluid dynamicist,[1] aerospace scientist and emeritus Theodore von Kármán Professor of Aeronautics at the California Institute of Technology.[2]
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.[1]
Hans Liepmann received a Dr.Ing.h.c. from the University of Aachen and a Ph.D. from the University of Zurich in 1938.[2]
On July 31, 1939 Liepmann arrived in New York, to join Theodore von Kármán at Caltech as a Research Fellow in Aeronautics.[1] 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.[2]
He retired in 1985, but remained the emeritus von Kármán Professor at Caltech.
Liepmann received several awards, a selection: