Measurements of gas densities in UF6 free jets expanding from converging nozzles into a vacuum are described. These densities are deduced from measured intensities of laser photons Rayleigh scattered by the gas. The nozzle Reynolds number Ren= ρoaodt/μo, where dt is the nozzle throat diameter, ranges from ft. 1150 to 9200. Axial distances from the nozzle as large as 25 throat diameters and radial distances as large as 8 throat diameters are covered. Measured densities are in good agreement with those predicted on the basis of inviscid-flow method of characteristics calculations.
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- 1.P. A. Hoisington, “Rayleigh-Scattering Density Measurements in UF6 Free-Jet Expansions,” Masters Thesis, Engrg. Phys., Univ. of Virginia (1980).Google Scholar
- 2.K. Hasegawa, “Analysis of the Exhaust Flow Near a Centrifuge Gas-Supply Nozzle,” Masters Thesis, Nucl. Engrg., Tokyo Inst. Tech. (1977, in Japanese)Google Scholar
- 4.H. Mikami, “A Computational Study of the Density and Temperature Distribution in a Freely Expanding Uranium Hexafluoride Gas,”Nucl. Sci. Engrg. 67:235 (1978).Google Scholar
- 5.S. S. Fisher, “Specific Heats and Enthalpies for Gaseous UF6,” Univ. of Virginia, School Engrg. and Appl. Sci., Report UVA- ER-760-82U (1982).Google Scholar
- 7.M. G. Graybeal, “Impact Probe Rarefaction Effects Measured in CO2 Free Jet Expansions,” Masters Thesis, Engrg. Phys., Univ. of Virginia (1982).Google Scholar
- 8.F. S. Sherman, “Self-Similar Development of Inviscid Hypersonic Free-Jet Flows,” Lockheed Missiles and Space Co., Sunnyvale Calif., Tech. Report No. 6-90-83-61 (1963).Google Scholar