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Dynamics of fine particles during impingement of jets on a body with a needle

  • Hydrodynamics in Technological Processes
  • Published:
Journal of Engineering Physics and Thermophysics Aims and scope

Numerical simulation of the impingement of a jet of a two-phase mixture of a gas with submicron metal particles on an obstacle with a needle located in front of it is carried out. The structure of a separated flow formed on impingement of a supersonic jet on a body with a needle has been studied. A comparison of various approximations for the law of resistance of spherical particles is made. It is shown that particles whose size exceeds 5 μm practically have a rectilinear trajectory and velocity sufficient for cold gas-dynamical deposition, whereas particles of diameter less than 0.2 μm envelope the separation zone being formed near the needle, and their velocity is much smaller than the critical one.

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Authors and Affiliations

  1. S. A. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, 4/1 Institutskaya Str., Novosibirsk, 630090, Russia

    A.P. Alkhimov*, I. A. Bedarev & A. V. Fedorov

Authors
  1. A.P. Alkhimov*
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  2. I. A. Bedarev
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  3. A. V. Fedorov
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Correspondence to I. A. Bedarev.

Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 86, No. 4, pp. 849–856, July–August, 2013.

*Deceased

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Alkhimov*, A., Bedarev, I.A. & Fedorov, A.V. Dynamics of fine particles during impingement of jets on a body with a needle. J Eng Phys Thermophy 86, 905–912 (2013). https://doi.org/10.1007/s10891-013-0910-3

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  • DOI: https://doi.org/10.1007/s10891-013-0910-3

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