Paul Steen ’75

Paul Steen ’75, of Ithaca, N.Y.; Sept. 4, from a heart attack. He earned his PhD in fluid dynamics at Johns Hopkins University and was a postdoctoral researcher at Stanford University. In 1982, he joined Cornell’s School of Chemical Engineering and in 2008, he became the Maxwell M. Upson Professor of Engineering, an endowed professorship that he held until his death. For 38 years, he was a teacher and advisor across departments and graduate fields in the College of Engineering at Cornell. He was internationally recognized as a scholar in fluid mechanics and engaged broadly in the international research community. He was a fellow of the American Institute of Chemical Engineers (2013) and the American Physical Society (1996), in addition to being the Alexander von Humboldt Fellow (1990, 1996, 2011, 2019). He was the recipient of the 2007 Henry Marion Howe Medal. He is survived by his wife, Kyra D. Stephanoff; two daughters, including Frances Steen ’15; a sister; three brothers, including John ’67 and Rodger ’69; and nephews Douglas Steen ’90, Andrew Steen ’00, and Eric Steen ’05.