RAS Chemistry & Material ScienceХимическая физика Advances in Chemical Physics

  • ISSN (Print) 0207-401X
  • ISSN (Online) 3034-6126

The effect of disordered perturbations on the entropy of an unstable system

PII
10.31857/S0207401X24090116-1
DOI
10.31857/S0207401X24090116
Publication type
Article
Status
Published
Authors
Volume/ Edition
Volume 43 / Issue number 9
Pages
95-106
Abstract
The contribution of disordered perturbations in density, velocity and pressure to the pair entropy of an unstable system, which sets the direction of its evolution, is estimated. Disordered perturbations arising in the incoming flow due to external influence are calculated by numerical integration of regular equations of multimoment hydrodynamics supplemented with stochastic components. The calculation of the distortion of the pair entropy of the system due to disordered perturbations is performed in the problem of flow around a stationary solid sphere. It is established that disordered perturbations of density, velocity and pressure do not have any noticeable effect on the parameters of the vortex street in the wake behind the sphere.
Keywords
многомоментная гидродинамика вихревое испускание турбулентность
Date of publication
14.09.2025
Year of publication
2025
Number of purchasers
0
Views
3

References

  1. 1. Лебедь И.В. // Хим. физика. 2014. Т. 33. № 4. С. 70.
  2. 2. Kiselev A.Ph., Lebed V. // Chaos, Solitons, and Fractals. 2021. V. 142. № 110491.
  3. 3. Лебедь И.В. // Хим. физика. 2024. Т. 43. № 9 . С. .
  4. 4. Лебедь И.В. // Хим. физика. 1998. Т. 17. № 3. С. 25.
  5. 5. Lebed I.V. The foundations of multimoment hydrodynamics. Part 1: ideas, methods and equations. N.-Y.: Nova Sci. Publ., 2018.
  6. 6. Лебедь И.В. // Хим. физика. 1997. Т. 16. № 7. С. 72.
  7. 7. Киселев А.Ф., Лебедь И.В. // Хим. физика. 2021. Т. 40. № 1. С. 79.
  8. 8. Лебедь И.В. // Хим. физика. 2022. Т. 41. № 1. С. 77.
  9. 9. Sakamoto H., Haniu H. // J. Fluid Mech. 1995. V. 287. P. 151.
  10. 10. Лойцянский Л.Г. Механика жидкости и газа. М.: Гостехтеоретиздат, 1957.
  11. 11. Монин А.С., Яглом А.М. Статистическая гидромеханика. Ч. 1. М.: Наука, 1965
  12. 12. Natarajan R., Acrivos A. // J. Fluid Mech. 1993. V. 254. P. 323.
  13. 13. Hannemann K., Oertel Jr.H. // Ibid. 1989. V. 199. P. 55.
  14. 14. Schuster H.G. Deterministic chaos. Weinheim: Physik Verlag, 1984.
  15. 15. Tomboulides A.G., Orszag placecountry-regionS.A. // J. Fluid Mech. 2000. V. 416. P. 45.
  16. 16. Ruelle D.,Takens F. // Commun. Math. Phys. 1971. V. 20. P. 167.
  17. 17. Лебедь И.В. // Хим. физика. 2023. Т. 42. № 12. С. 86.
  18. 18. Townsend A.A. The structure of turbulent shear flow. Cambridge University Press, 1956.
  19. 19. Moffatt H.K. // J. Fluid Mech.1981. V. 106. P. 27.
  20. 20. Лебедь И.В., Уманский С.Я. // Хим. физика. 2007. Т. 26. № 1. С. 65.
  21. 21. Chomaz J.M., Bonneton P., Hopfinger E.J. // J. Fluid Mech. 1993. V. 234. P.1.
  22. 22. Киселев А.Ф., Лебедь И.В. // Хим. физика. 2021. Т. 40. № 6. С. 80.
  23. 23. Лебедь И.В. // Хим. физика. 2023. Т. 42. № 9. С. 83.
  24. 24. Лебедь И.В. // Хим. физика. 2022. Т. 41. № 4. С. 81.
QR
Translate

Индексирование

Scopus

Scopus

Scopus

Crossref

Scopus

Higher Attestation Commission

At the Ministry of Education and Science of the Russian Federation

Scopus

Scientific Electronic Library