Abstract
An experimental investigation is performed of the impact made by artificial disturbances on the formation of structures under conditions of flow of water film on a vertical plate with a heater. The fluorescent method is used for measuring the film thickness. It is found that artificial disturbances on the surface of liquid film may cause a significant variation of the spacing between jets, and the scenario of evolution of wave pattern depends on their intensity. Artificial disturbances on the film surface cause the spacing between jets to decrease from values corresponding to the thermocapillary-wave mode of formation of jets to values close to those of spacings typical of the thermocapillary mode. In so doing, the spacing between jets may be varied at higher values of Reynolds number than is the case in the thermocapillary mode. It is demonstrated that it is possible to control the formation of structures on the surface of a heated film of liquid, and the conditions of maximal effect of artificial disturbances are determined.
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References
Chinnov, E.A. and Kabov, O.A., Prikl. Mekh. Tekh. Fiz., 2003, vol. 44, no. 5, p. 128.
Chinnov, E.A., Hydrodynamics and Heat Transfer in Capillary Flows with Natural Circulation, Doctoral (Phys.-Math.) Dissertation, Novosibirsk: Inst. of Thermophysics, Siberian Div. Russ. Acad. Sci., 2004.
Kabov, O.A., Diatlov, A.V., and Marchuk, I.V., Heat Transfer from a Vertical Heat Source to Falling Liquid Film, Proc. of the First Int. Symp. on Two-Phase Flow Modeling and Experimentation, 1995, vol. 1, p. 203.
Kabov, O.A. and Chinnov, E.A., Russ. J. Eng. Thermophys., 1997, vol. 7, nos. 1/2, p. 1.
Kabov, O.A., Teplofiz. Aeromekh., 1998, vol. 5, no. 4, p. 597.
Kuznetsov, V.V., Russ. J. Eng. Thermophys., 2000, vol. 10, no. 2, p. 107.
Sharypov, O.V. and Medvedko, K.A., Russ. J. Eng. Thermophys., 2000, vol. 10, no. 4, p. 315.
Kabov, O.A., Kuznetsov, V.V., Marchuk, I.V. et al., Poverkhnost’ Rentgen. Sinkhrotron. Neitron. Issled., 2001, no. 9, p. 83.
Scheid, B., Oron, A., Colinet, P. et al., Phys. Fluids, 2002, vol. 14, p. 4130.
Kalliadasis, S., Kiyashko, A., and Demekhin, E.A., J. Fluid Mech., 2003, vol. 475, p. 377.
Frank, A.M., Eur. J. Mech. B/Fluids, 2003, vol. 22, p. 445.
Skotheim, J.M., Thiele, U., and Scheid, B., J. Fluid Mech., 2003, vol. 475, p. 1.
Frank, A.M. and Kabov, O.A., Phys. Fluids, 2006, vol. 18, pp. 032107-1.
Chinnov, E.A., Kabov, O.A., Zhukovskaya, O.V. et al., Teplofiz. Vys. Temp., 2006, vol. 44, no. 6, p. 903 (High Temp. (Engl. transl.), vol. 44, no. 6).
Chinnov, E.A. and Zhukovskaya, O.V., Pis’ma Zh. Tekh. Fiz., 2006, vol. 32, no. 9, p. 87 (Tech. Phys. Lett. (Engl. transl.), vol. 32, no. 9).
Chinnov, E.A. and Zhukovskaya, O.V., The Effect of Intensity of Artificial Disturbances on the Formation of Structures in Heated Film of Liquid, in Trudy Chetvertoi Rossiiskoi natsional’noi konferentsii po teploobmenu. 23–27 oktyabrya 2006 (Proc. of the Fourth Russian National Conference on Heat Transfer. October 23–27, 2006), Moscow: Izd. MEI (Moscow Inst. of Power Engineering), 2006, vol. 5, p. 195.
Chinnov, E.A. and Kabov, O.A., Teplofiz. Vys. Temp., 2004, vol. 42, no. 2, p. 269 (High Temp. (Engl. transl.), vol. 42, no. 2, p. 267).
Chinnov, E.A., Kharlamov, S.M., Zhukovskaya, O.V. et al., Measurement of the Field of Thickness of heated Film of Liquid by Fluorescent Method, in Trudy Chetvertoi Rossiiskoi natsional’noi konferentsii po teploobmenu. 23–27 oktyabrya 2006 (Proc. of the Fourth Russian National Conference on Heat Transfer. October 23–27, 2006), Moscow: Izd. MEI (Moscow Inst. of Power Engineering), 2006, vol. 5, p. 313.
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Original Russian Text © E.A. Chinnov, 2009, published in Teplofizika Vysokikh Temperatur, Vol. 47, No. 1, 2009, pp. 68–74.