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Numerical simulation of unsteady-state heat transfer in falling wavy films of liquid

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Abstract

A mathematical model is constructed that enables the time of expectation of boiling incipience in falling wavy films of liquid under conditions of unsteady-state heat release to be determined. The process of wave generation in falling films of liquid nitrogen is simulated numerically. The times of expectation of boiling as function of the heat flux density are calculated for various Reynolds numbers at the inlet. The results of numerical simulation are in satisfactory agreement with experimental data.

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Authors and Affiliations

  1. Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    A. N. Chernyavskii & A. N. Pavlenko

Authors
  1. A. N. Chernyavskii
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  2. A. N. Pavlenko
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Correspondence to A. N. Chernyavskii.

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Original Russian Text © A.N. Chernyavskii, A.N. Pavlenko, 2014, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2014, Vol. 40, No. 23, pp. 1–8.

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Chernyavskii, A.N., Pavlenko, A.N. Numerical simulation of unsteady-state heat transfer in falling wavy films of liquid. Tech. Phys. Lett. 40, 1039–1041 (2014). https://doi.org/10.1134/S1063785014120062

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  • DOI: https://doi.org/10.1134/S1063785014120062

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