Abstract
A technique for theoretical calculation of the hydraulic resistance coefficient for round tubes with rough walls is proposed that takes into account the variable height of the roughness and based on the superposition principle of complete viscosity in a turbulent boundary layer.
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Lobanov, I.E., Theory of Hydraulic Resistance in Straight Circular Tubes with Rough Walls, Industry Aspects of Technical Science, 2012, no. 4, pp. 4–13.
Millionshchikov, M.D., Turbulentnye techeniya v pogranichnom sloe i v trubakh (Turbulent Flow in the Boundary Layer and in the Tubes), Moscow, Nauka, 1969.
Ibragimov, M.H., Subbotin, V.I., Bobkov, V.P., et al. Struktura turbulentnogo potoka i mekhanizm teploobmena v kanalakh (The Structure of the Turbulent Flow Mechanism and Heat Transfer in Channels), Moscow, Atomizdat, 1978.
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Original Russian Text © I.E. Lobanov, 2015, published in Izvestiya VUZ. Aviatsionnaya Tekhnika, 2015, No. 3, pp. 52-56.
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Lobanov, I.E. Hydraulic resistance in a tube with the non-permanent roughness. Russ. Aeronaut. 58, 304–308 (2015). https://doi.org/10.3103/S1068799815030095
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DOI: https://doi.org/10.3103/S1068799815030095