Abstract
The paper presents the results of experimental study for hydrodynamic processes occurring during combustion of a stoichiometric mixture propane-oxygen in combustion chambers with different configurations and submerged into water. The pulses of force acting upon a thrust wall were measured for different geometries: cylindrical, conic, hemispherical, including the case of gas combustion near a flat thrust wall. After a single charge of stoichiometric mixture propane-oxygen is burnt near the thrust wall, the process of cyclic generation of force pulses develops. The first pulse is generated due to pressure growth during gas combustion, and the following pulses are the result of hydrodynamic pulsations of the gaseous cavity. Experiments demonstrated that efficient generation of thrust occurs if all bubble pulsations are used during combustion of a single gas combustion. In the series of experiments, the specific impulse on the thrust wall was in the range 104–105 s (105–106 m/s) with account for positive and negative components of impulse.
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References
A.V. Platonov, Submarines, Polygon, St-Petersburg, 2002.
V.A. Bashkatov, P.P. Orlov, and M.I. Fedosov, Hydrojet Propulsion Apparatuses, Sudostroenie, Leningrad, 1977.
V.S. Teslenko, A.P. Drozhzhin, R.N. Medvedev, and I.S. Batraev, In-water gas combustion in linear and annular bubbles, Thermophysics and Aeromechanics, 2014. Vol. 21, No. 4, P. 479–488.
V.S. Teslenko, A.P. Drozhzhin, and R.N. Medvedev, Generation of force pulses and vortices during pulse combustion of gas in water, in: Proc. Russian Conf. “XXXI Siberian Thermophysics Workshop” (ISBN 978-5-89017-039-2), Novosibirsk, Institute of Thermophysics SB RAS, 2014. P. 234–236.
R.N. Medvedev, A.P. Drozhzhin, and V.S. Teslenko, Thrust generation by pulse combustion of gas in a submerged chamber, Int. J. Multiphase Flow, 2016. Vol. 83, P. 232–238.
O.E. Popov and S.M. Kogarko, On one peculiarity of subsea explosion of gaseous mixtures, Combustion, Explosion, and Shock Waves, 1976. No.4, P. 610–614.
R.N. Medvedev, A.P. Drozhzhin, and V.S. Teslenko, The threshold for generation of cavitation vortex rings for liquid flow from a submerged tube, in: Modern Science: Research, Ideas, Results, Technologies, 2015. No. 1 (16). P. 86–89.
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Research was financially supported in part by the Russian Foundation for Basic Research (Grant No. 13-08-00838).
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Teslenko, V.S., Drozhzhin, A.P. & Medvedev, R.N. In-water gas combustion for thrust production. Thermophys. Aeromech. 24, 583–591 (2017). https://doi.org/10.1134/S0869864317040102
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DOI: https://doi.org/10.1134/S0869864317040102