ABSTRACT
HABERMAN 04.05. 1922 Wien/A 27.12. 1996 Rockville MD/USA William Lawrence Haberman received in 1949 the BS degree from the Cooper Union University, New York, the MS degree from University of Maryland, College Park, in 1952, and the PhD degree in 1956. He was from 1949 to 1950 a physicist at the Bureau of Ships, US Department of the Navy, until 1957 at the David Taylor Model Basin, Bethesda MD, then department director of the Gas Dynamics Division for two years, and then chief of research branch and director of advanced planning. From 1963 to 1971, he served as NASA senior staff scientist, and from 1973 to 1978 was professor of thermodynamics at Montgomery College, Montgomery MD. He was member of the American Institute of Aeronautics and Astronautics AAIA, the American Physical Society APS, the American Association for the Advancement of Science, and the American Geophysical Union AGU. Haberman had research interests in potential flows, cavitation, theoretical mechanics, thermal radiation, research administration, and in viscous and two-phase flows. In the latter field, he contributed the significant 1956 paper with a colleague. Experiments were conducted to study the motion of air bubbles, thereby determining the drag and the shape of single-rising bubbles in various liquids. This fundamental hydraulic process is governed by viscosity, fluid density and surface tension. Three types of bubble shapes were observed, namely spherical, ellipsoidal and spherical cap, as the bubble dimension increases. For tiny spherical bubbles the drag coefficient equals that of the corresponding rigid sphere. As bubble size increases, the drag decreases as compared with the former case. Ellipsoidal bubbles occur at different ranges of Reynolds numbers, depending on the type of liquid. The drag coefficient of spherical cap bubbles was found constant. He authored three books in fluid mechanics, engineering thermodynamics and heat transfer. Anonymous (1985). Haberman, W.L. Who’s who in engineering 6: 256. AAES: New York. Anonymous (1994). Haberman, William L. American men and women in science 3: 486. Grossman, B.M. (2013). William L. Haberman. Personal communication. P Haberman, W.L., Morton, R.K. (1956). An experimental study of bubbles moving in liquids. Trans. ASCE 121: 227-252. Haberman, W.L., Sayre, R.M. (1958). Motion of rigid and fluid spheres in stationary and moving liquids inside cylindrical tubes. Dept. of Navy, Report 1143. David Taylor Model Basin. John, J.E., Haberman, W.L. (1988). Introduction to fluid mechanics, 3rd ed. Prentice Hall: Englewood Cliffs NJ.
