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Contribution to the theory of laminar momentumless wakes

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Abstract

The self-similar laws of decay of the velocity field in a plane momentumless viscous incompressible wake of a hydrodynamic propulsion system were first analyzed in [1]. Turbulent wakes in the near and far flow regions were investigated in [2] on the basis of an integral calculation method. In [3] the asymptotic laws of degeneration of the passive admixture concentration, temperature and velocity fields were obtained, making it possible to estimate the effect of purely molecular diffusion and convective transfer o the passive impurity concentration distribution in the wake. In the present paper the limiting self-similar solutions of the problem of a swirled momentumless viscous incompressible wake are obtained, together with the self-similar solutions of the problem of the development of a plane momentumless wake in a medium nonuniform with respect to temperature (passive admixture concentration).

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Literature cited

  1. G. Birkhoff and E. H. Zarantonello, Jets, Wakes and Cavities, Academic Press, New York (1957).

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  2. A. S. Ginevskii, Theory of Turbulent Jets and Wakes [in Russian], Mashinostroenie, Moscow (1969), pp. 260–272.

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  3. V. I. Korobko, V. K. Shashmin, and Z. P. Shul'man, “Development of laminar jet flows with zero excess momentum,” Izv. Akad. Nauk SSSR, Mekh. Zhidk. Gaza, No. 3, 27 (1984).

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  5. C. C. Alexopoulos and J. F. Keffer, “Turbulent wake in a passively stratified field,” Phys. Fluids,14, 216 (1971).

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Authors and Affiliations

  1. Novopolotsk

    V. I. Korobko, V. K. Shashmin & Z. P. Shul'man

Authors
  1. V. I. Korobko
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  2. V. K. Shashmin
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  3. Z. P. Shul'man
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 2, pp. 35–39, March–April, 1986.

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Korobko, V.I., Shashmin, V.K. & Shul'man, Z.P. Contribution to the theory of laminar momentumless wakes. Fluid Dyn 21, 195–199 (1986). https://doi.org/10.1007/BF01050169

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  • DOI: https://doi.org/10.1007/BF01050169

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