I. N. Beloglazov, I. I. Beloglazov, Y.V. Sharikov, Saint Petersburg State Mining Institute (Technical University); techno@inteco.spb.ru

The universal equations for flow in cylindrical tubes under laminar conditions are developed; the resistance law in the interpretation used enables one to provide a more exact relationship between the parameters in the most complicated cases, can be used in computing flow hydrodynamics of the flow of a liquid or gas in the tubular devices applied in ferrous metallurgy.

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