Experimentally determined turbulent Prandtl numbers in liquid sodium at low Reynolds numbers

Turbulent Prandtl numbers have been deduced from measurements of mean velocity and mean temperature distributions and their half value radii for a liquid sodium jet discharging into essentially still fluid. Results obtained indicate a velocity dependence and are similar to those reported in the lite...

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Bibliographic Details
Published in:International journal of heat and mass transfer 1992-02, Vol.35 (2), p.351-359
Main Authors: BREMHORST, K, KREBS, L
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Installations for energy generation and conversion: thermal and electrical energy
jets
temperature distribution
turbulent flow
velocity
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Summary:Turbulent Prandtl numbers have been deduced from measurements of mean velocity and mean temperature distributions and their half value radii for a liquid sodium jet discharging into essentially still fluid. Results obtained indicate a velocity dependence and are similar to those reported in the literature for pipe flows. The velocity dependence becomes pronounced at low velocities. Combination of the new jet flow and existing pipe flow data for liquid sodium leads to a simple functional relationship between turbulent Prandtl number and eddy diffusivity of heat which may be readily solved for epsilon sub(H) once epsilon sub(M) is known.
ISSN:0017-9310
1879-2189
DOI:10.1016/0017-9310(92)90273-U