Laser-induced fluorescence diagnostic for the LEM turbulent hydrodynamics experiment

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The authors are developing a laser-induced fluorescence (LIF) diagnostic for the LEM experiment to measure the evolution of a Rayleigh-Taylor unstable fluid interface into the highly nonlinear regime. The interface will be between two fluids of different density in a 7 x 7 x 14 cm cell that will be accelerated downwards over a distance of {approximately}100 cm, achieving maximum velocities of order 50 m/s. One of the two fluids will be doped with laser dye and pumped to fluoresce with a 100 Hz pulsed, frequency doubled YAG laser beam spread into a sheet and entering the cell from the ... continued below

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14 p.

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Remington, B. & Dimonte, G. December 1, 1994.

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Description

The authors are developing a laser-induced fluorescence (LIF) diagnostic for the LEM experiment to measure the evolution of a Rayleigh-Taylor unstable fluid interface into the highly nonlinear regime. The interface will be between two fluids of different density in a 7 x 7 x 14 cm cell that will be accelerated downwards over a distance of {approximately}100 cm, achieving maximum velocities of order 50 m/s. One of the two fluids will be doped with laser dye and pumped to fluoresce with a 100 Hz pulsed, frequency doubled YAG laser beam spread into a sheet and entering the cell from the bottom. The short pulse duration of the laser (<10 ns) eliminates motional blurring, and the images are recorded from the side with a series of 35 mm static cameras. Aligning the laser sheet to the center of the cell localizes the region of the cell probed and eliminates edge effects in the data. This LIF diagnostic will be described.

Physical Description

14 p.

Notes

INIS; OSTI as DE95014698

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  • Meeting of the Fluid Dynamics Division of the American Physical Society, Atlanta, GA (United States), 20-22 Nov 1994

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  • Other: DE95014698
  • Report No.: UCRL-JC--115959
  • Report No.: CONF-941174--1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 83793
  • Archival Resource Key: ark:/67531/metadc788738

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 1, 1994

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  • Dec. 3, 2015, 9:30 a.m.

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  • Feb. 23, 2016, 1:49 p.m.

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Remington, B. & Dimonte, G. Laser-induced fluorescence diagnostic for the LEM turbulent hydrodynamics experiment, article, December 1, 1994; California. (digital.library.unt.edu/ark:/67531/metadc788738/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.