Ellen K. Longmire
Professor
Ellen K. Longmire
Professor
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Professor Longmire's research uses advanced experimental methods to study single- and multi-phase turbulent flows, liquid/liquid mixtures, microscale flows, biomedical flows, and hypersonic flows. Current projects focus on eddy identification and particle transport in turbulent boundary layers, how discrete particles affect transition to turbulence, liquid/liquid flows with contact effects, and spectral measurements of hypersonic reentry flow.
Ph.D., Mechanical Engineering, Stanford University, 1990
M.S., Mechanical Engineering, Stanford University, 1985
Technische Universitaet Braunschweig, Germany, 1982-1983
B.A., Physics, Princeton University, 1982
Professor, Aerospace Engineering & Mechanics, University of Minnesota, 2003-Present
Associate Dean for Academic Affairs, College of Science & Engineering, University of Minnesota, 2018-2023
Associate Professor, Aerospace Engineering & Mechanics, University of Minnesota, 1996-2003
Director of Graduate Studies, Aerospace Engineering and Mechanics, University of Minnesota, 1996-1998
Assistant Professor, Aerospace Engineering & Mechanics, University of Minnesota, 1990-1995
Research Assistant, Stanford University, 1986-1990
Research Engineer, Science Applications International Corporation, Los Altos, CA, 1985-1986
Research Engineer, Science Applications International Corporation, Los Altos, CA, 1985-1986
Assistant Engineer Physics Research Laboratory Hauni-Werke Koerber & Co., Hamburg, Germany (5 months), 1984
Associate Engineer, Honeywell Test Instruments Division, Denver, CO, 1984 & 1981
2016: Chair, American Physical Society Division of Fluid Dynamics
2014-Present: Editor in Chief, Experiments in Fluids
2011-2015: U.S. National Committee on Theoretical & Applied Mechanics
2008-2013: Associate Editor, Physics of Fluids
2007: Fellow, American Physical Society
2007: Distinguished Women Scholars Award
1994 -1999: NSF National Young Investigator
1994 - 1996: McKnight Land-Grant Professor
1992-1994: Research Initiation Award, National Science Foundation
1989 - 1990: AAUW Dissertation Fellowship
1987 - 1988: Link Energy Fellowship
1984 - 1985: Chevron U.S.A. Fellowship in Energy Studies
1982-1983: DAAD Postgraduate Fellowship
Tee, Y.H., and Longmire, E.K. Effect of fluid motions on finite spheres released in turbulent boundary layers, J. Fluid Mech., 985, A28, doi:10.1017/jfm.2024.291.
Ribeiro, R., Green, M., and Longmire, E.K., Karman street-boundary layer interactions in turbulent flow, 21st International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, 2024.
Gardi, A., Longmire, E.K., and Simeni M.S. Simulation-based Guidelines for the Integration of an Emission Spectrometer into a Hypersonic Re-entry CubeSat, AIAA Scitech Forum, Orlando, AIAA 2024-0229, 2024.
Paul, S., and Longmire, E.K. 2-D PTV measurements in transitional particle-laden pipe flow, 15th International Symposium on Particle Image Velocimetry, San Diego, 2023.
Paul, S., and Longmire, E.K. Interaction of puffs and particles in transitional particle-laden pipe flow, 11th Int. Conf. on Multiphase Flow, Kobe, 2023.
Hooshanginejad, A., Jung, S., Longmire, E.K., and Lee, S. Gravity induced double encapsulation of liquids using granular rafts, Phys. Rev. Fluids, 7, 064003, 2022.
Barros, D.C., Duan, Y., Troolin, D., and Longmire, E.K. Air-filled soap bubbles for volumetric velocity measurements in air flows, Exp. Fluids, 62:36, 2021.
Tee, Y.H., Barros, D.C., and Longmire, E.K. Motion of large particles released into turbulent boundary layers, Int. J. Multiphase Flow, 133, 103462, 2020.
Tee, Y.H., Barros, D., and Longmire, E.K., Three-dimensional tracking of finite size spheres in a turbulent boundary layer, *13th International Symposium on Particle Image Velocimetry*, Munich, 2019.
Barros, D., Troolin, D., Duan, Y., Longmire, E.K., and Lai, W., Soap bubbles for volumetric velocity measurements in air flows, *13th International Symposium on Particle Image Velocimetry*, Munich, 2019.
Winters, K.J., and Longmire, E.K. PIV-based characterization of puffs in transitional pipe flow, *Exp. Fluids*, *60*:60, 2019.
Bordoloi, A.D., and Longmire, E.K., Local velocity variations for a drop moving through an orifice: effects of edge geometry and surface wettability, Phys. Rev. Fluids 3, 123602, 2018.
Barros, D., Hiltbrand, B., and Longmire, E.K., Measurement of the translation and rotation of a sphere in fluid flow, Exp. Fluids, 59:104, 2018.
Tee, Y.H., Barros, D., and Longmire, E.K., Translation and rotation of a spherical particle in a turbulent boundary layer, 19th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, 2018.
Tan, Y.M. and Longmire, E.K., Recovery of vortex packet organization in perturbed turbulent boundary layers, Phys. Rev. Fluids 2, 104602, 2017.
Adhikari, D., Gemmell, B.J., Hallberg, M.P., Longmire, E.K, and Buskey, E.J., Simultaneous measurement of 3D zooplankton trajectories and surrounding fluid velocity field in complex flows, J. Exp. Biology, doi: 10.1242/jeb.121707, 2015.
Bordoloi, A.D. and Longmire, E.K., Drop motion through a confining orifice, J. Fluid Mech., 759, 520-545, 2014.
Zheng, S. and Longmire, E.K. “Perturbing vortex packets in a turbulent boundary layer,” J. Fluid Mech., 748, 368-398, 2014.
Gemmell, B.J., Adhikari, D., and Longmire, E.K. “High-resolution quantification of fluid flow reveals fish use hydrodynamic stealth to capture evasive prey,” J. Royal Society Interface, 11 (90), 20130880, 2014.
Gao, Q., Ortiz-Duenas, C., Longmire, E.K., “Evolution of coherent structures in turbulent boundary layers based on moving tomographic PIV,” Exp. Fluids, 54, 1625, 2013.