Technical Physics Letters
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Liquid metal pipe flow hydraulic resistance in a transverse magnetic field
Luchinkin N.A.
1, Balabaev N.E.2, Fedoseev L.A.1, Shenyagin E.M.2, Belyaev I.A.
2
1National Research University «Moscow Power Engineering Institute», Moscow, Russia
2Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
2Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
Email: bia@ihed.ras.ru
The results of an experimental study of the effect of a transverse magnetic field on the hydraulic resistance during the flow of mercury in a round pipe with different wall conductivity are considered. The changes in the coefficients of hydraulic resistance at Reynolds numbers in the range Re=(10-40)· 103 and magnetic fields providing Hartmann numbers in the range Ha=0-1800 are investigated. Pipes with different steel wall thicknesses are considered, and the effect of copper plating aimed at improving the electrical contact at the mercury-steel interface is studied. Keywords: magnetic hydrodynamics, hydraulic resistance, liquid metal, wall conductivity, contact electrical resistance.
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