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Walter Lempert

Professor


Ph.D. 1981, University of Utah

Room E445
201 W. 19th Ave.
Columbus, OH 43210

614-292-2736

Email: lempert.1

Web site: http://rclsgi.eng.ohio-state.edu/%7Eadamovic/netl/
Thrust Area(s): Energy, Fluid, and Thermal Systems

Research

Dr. Lempert's research focuses on the application of atomic and molecular spectroscopy to problems of engineering interest. The work is inherently interdisciplinary, combining such diverse subjects as nonlinear optics, fluid mechanics, plasma physics, and energy transfer. In a broad sense, current research topics can be divided into three areas; development of new laser/optical technology, studies of the influence of vibrational nonequilibrium on air plasmas, and application of planar imaging diagnostics to problems in fluid mechanics.

Selected Publications

  1. R.B. Miles and W.R. Lempert, "Quantitative Flow Visualization in Unseeded Flows," Annual Review of Fluid Mechanics 29, 1997, pp. 285-326.
  2. J.H. Grinstead, N.D. Finkelstein, and W.R. Lempert, "Frequency Modulated Filtered Rayleigh Scattering: A New Technique for Real Time Velocimetry," Opt. Lett. 22, March 1, 1997, pp. 331-333.
  3. S.R. Harris, W.R. Lempert, L. Hersch, C.L. Burcham, D.A. Saville, R.B. Miles, K. Gee, and R.P. Haugland, "Quantitative Measurements of Internal Circulation in Droplets using Flow Tagging Velocimetry," AIAA J. 34, 1996, pp. 449-454.
  4. W. R. Lempert, Ping-Fan Wu, and Richard B. Miles, "Filtered Rayleigh Scattering Measurements Using a MHz Rate Pulse-Burst Laser System," Paper #AIAA 97-0500, AIAA 35th Aerospace Sciences Meeting, Reno, NV, Jan. 6-9, 1997.
  5. A. Noullez, G. Wallace, W. Lempert, R.B. Miles, and U. Frisch, "Transverse Velocity Increments in Turbulent Flow Using the RELIEF Technique," J. Fluid Mechanics, 339, pp. 287-307, 1997.
  6. J.N. Forkey, W.R. Lempert, and R.B. Miles, "Observation of a 100 MHz Frequency Variation Across the Output of a Frequency-Doubled, Injection-Seeded, Unstable Resonator, Q-Switched Nd:YAG Laser," Optics Letters 22, February 15, 1997, pp. 230-232.
  7. C. J. Meinrenken, W. D. Gillespie, S. Macheret, W. R. Lempert, and R. B. Miles, "Time Domain Modeling of Spectral Collapse in High Density Molecular Gases," J. Chemical Physics 106, May 22, 1997, pp. 8299-8309

   ME @ OSU