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The advancement in the numerical methods of the scaling function calculation in problem of decaying turbulence

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Czechoslovak Journal of Physics Aims and scope

Abstract

The problem of the calculation of the energy spectrum of velocity modes is studied in the case where the homogeneous and isotropic turbulence evolves near the state of its strong development. The Karman scale is considered to be the principal spectral scale and Saffman’s invariant is assumed to be conserved during the power time decay. In the past, the physical problem was formulated by means of complicated system of a integro-differential equations. The deficiency of the preliminary approximations has led us to the development of a novel principal computational scheme based on the function optimization approach.

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Authors and Affiliations

  1. P.J. Šafárik University, Komenského 14, 04154, Košice, Slovakia

    B. Brutovský

  2. Experimental Physics Institute, Slovak Acad. Sci., Košice, Slovakia

    M. Hnatich, D. Horváth & M. Stehlik

Authors
  1. B. Brutovský
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  2. M. Hnatich
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  3. D. Horváth
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  4. M. Stehlik
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Additional information

This work was partly supported by the Slovak Academy of Sciences and by grants SAV-MŠ 2/4171/97, SAV 4001 and MŠ 1/1499/97.

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Brutovský, B., Hnatich, M., Horváth, D. et al. The advancement in the numerical methods of the scaling function calculation in problem of decaying turbulence. Czech J Phys 47, 667–673 (1997). https://doi.org/10.1023/A:1021125021146

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  • DOI: https://doi.org/10.1023/A:1021125021146

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