Ellen Kathryn Longmire is an American applied physicist and mechanical engineer known for her research in experimental fluid dynamics and turbulence.
She is a professor of aerospace engineering and mechanics at the University of Minnesota, where she is also Associate Dean for Academic Affairs in the College of Science & Engineering,[1], the former chair of the American Physical Society Division of Fluid Dynamics, and one of three editors-in-chief of the journal Experiments in Fluids.
After a year at the Technical University of Braunschweig, and work in industry at Honeywell, Hauni-Werke Koerber, and Science Applications International, she went to Stanford University for graduate study in mechanical engineering, earning a master's degree in 1985 and completing a Ph.D. in 1990.
[1] She chaired the American Physical Society Division of Fluid Dynamics in 2016.
[2] Longmire was named a Fellow of the American Physical Society (APS) in 2006, after a nomination by the APS Division of Fluid Dynamics, "for innovative experiments in turbulent and particle-laden flows, and the development of new and improved flow diagnostic techniques".