Abstract
The problem of the joint flow of a turbulent gas stream and a vertically falling wavy liquid film is considered. Tangential and normal stresses on the interfaces are calculated. The components of the Reynolds stress tensor are determined within the framework of the Boussinesq hypothesis. For the case of small Reynolds numbers of a liquid, the problem is reduced to a nonlinear integro-differential equation for the deviation of the layer thickness from the unperturbed level. A numerical study of the evolution of periodic perturbations is carried out. Several typical scenarios of their development are presented.
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A.A. Gorodilov, M.G. Berengarten, and A.S. Pushnov, Features of fluid film falling on the corrugated surface of structured packings with perforations, Theor. Found. Chem. Eng., 2016, Vol. 50, No. 3, P. 325–334.
S.V. Alekseenko, V.E. Nakoryakov, and B.G. Pokusaev, Wave Flow of Liquid Films, Begell House, New York, 1994.
V.E. Nakoryakov and N.I. Grigorieva, Non-isothermal Absorption in Thermotransformers, Nauka, Novosibirsk, 2010.
S.V. Alekseenko, D.M. Markovich, S.M. Kharlamov, and A.V. Cherdantsev, Experimental study of the linear stability of a falling liquid film in the presence of a turbulent gas stream, Fluid Dynamics, 2004, V. 39, No. 4, P. 612–620.
A. Wolf, S. Jayanti, and G.F. Hewitt, Flow development in vertical annular flow, Chem. Engng Sci., 2001, Vol. 56, Iss. 10, P. 3221–3235.
C.D. Park, T. Nosoko, S. Gima, and S.T. Ro, Wave-augmented mass transfer in a liquid film falling inside a vertical tube, Inter. J. Heat Mass Trans., 2004, Vol. 47, P. 2587–2598.
S.P. Aktershev and S.V. Alekseenko, Interfacial instabilities in an annular two-phase flow, Russ. J. Engng Thermophysics, 1996, Vol. 6, No. 4, P. 307–320.
D. Tseluiko and S. Kalliadasis, Nonlinear waves in counter-current gas-liquid film flow, J. Fluid Mech., 2011, Vol. 673, P. 19–59.
A.M. Frank, Numerical simulation of gas driven waves in a liquid film, Phys. Fluids, 2008, Vol. 20, No. 12, P. 122102.
G.M. Sisoev, O.K. Matar, and C.J. Lawrence, Wave regimes in two-layer microchannel flow, Chem. Engng Sci., 2009, Vol. 64, Iss. 13, P. 3094–3102.
G.F. Dietze and C.C. Ruyer-Quil, Wavy liquid films in interaction with a confined laminar gas flow, J. Fluid Mech., 2013, Vol. 722, P. 348–393.
E.A. Demekhin, Nonlinear waves in a liquid film entrained by a turbulent gas stream, Fluid Dynamics, 1981, V. 16, No. 2, P. 188–193.
O. Yu. Tsvelodub and D.G. Arkhipov, Simulation of nonlinear waves on the surface of a thin fluid film moving under the action of turbulent gas flow, J. Appl. Mech. Tech. Phys., 2017, Vol. 58, No. 4, P. 619–628.
Y.Y. Trifonov, Counter-current gas-liquid wavy film flow between the vertical plates analyzed using the Navier-Stokes equations, AIChE J., 2010, Vol. 56, No. 8, P. 1975–1987.
R. Vellingiri, D. Tseluiko, N. Savva, and S. Kalliadasis, Dynamics of a liquid film sheared by a co-flowing turbulent gas, Inter. J. Multiphase Flow, 2013, Vol. 56, P. 93–104.
P.I. Geshev, A linear model of close-to-wall turbulent transfer, Russ. J. Engng Thermophys., 1993, Vol. 3, No. 1, P. 49–89.
I.S. Vozhakov, D.G. Arkhipov, and O.Yu. Tsvelodub, Simulating nonlinear waves on the surface of thin liquid film entrained by turbulent gas flow, Thermophysics and Aeromechanics, 2015, V. 22, No. 2, P. 191–202.
O.Yu. Tsvelodub, Simulating nonlinear steady-state traveling waves on the falling liquid film entrained by a gas flow, J. Phys.: Conf. Series, 2016, Vol. 754, P. 032020-1–032020-5.
O.Yu. Tsvelodub and A.A. Bocharov, Modeling nonlinear wave regimes in a falling liquid film entrained by a gas flow, Chaos, Solitons and Fractals, 2017, Vol. 104, P. 580–587.
O.Yu. Tsvelodub and A.A. Bocharov, Simulating solitary waves on a flowing down liquid film entrained by a gas stream, Eur. J. Mech. B - Fluids, 2018, Vol. 72, P. 449–455.
T.B. Benjamin, Shearing flow over a wavy boundary, J. Fluid Mech., 1959, Vol. 6, Iss. 2, P. 161–205.
I.S. Vozhakov, D.G. Arkhipov, and O.Yu. Tsvelodub, Studying evolution of periodic wave regimes on a falling doun liquid film, J. Phys.: Conf. Series, 2017, Vol. 899, No. 3, P. 032025-1–032025-6.
I.S. Vozhakov, D.G. Arkhipov, and O.Yu. Tsvelodub, Nonstationary periodic wave regimes on a falling liquid film, J. Phys.: Conf. Series, 2018, Vol. 1105, No. 1, P. 012069-1–012069-6.
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The work was financially supported by the Russian Science Foundation (Grant No. 16-19-10449).
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Tsvelodub, O.Y., Arkhipov, D.G. & Vozhakov, I.S. Investigating waves on the surface of a thin liquid film entrained by a turbulent gas flow: modeling beyond the “quasi-laminar” approximation. Thermophys. Aeromech. 28, 223–236 (2021). https://doi.org/10.1134/S0869864321020050
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DOI: https://doi.org/10.1134/S0869864321020050