NUMERICAL AND EXPERIMENTAL INVESTIGATION OF THE DEVELOPMENT OF TWO-DIMENSIONAL DISTURBANCES IN THE CASE OF RAYLEIGH–TAYLOR INSTABILITY AND TRANSITION TO TURBULENCE

Cover Page

Cite item

Full Text

Open Access Open Access
Restricted Access Access granted
Restricted Access Subscription Access

Abstract

The results of experimental and numerical investigations of the development of two- dimensional determininistic disturbances in the case of Rayleigh–Taylor instability and transition to turbulence on the gas–liquid interface are presented. The experiments were performed on a light-gas gun. Disturbances at the interface were produced by means of gun oscillations using a special device. The disturbance wavelength varied from 5.4 to 8.8 mm, their amplitude from 0.3 to 0.4 mm, and the liquid layer acceleration from 5.2 to 18.8 mm/ms2. Water was used as a fluid and compressed air as a gas. The experimental data on the disturbance transition to the turbulent stage are obtained. The experiments are accompanied by the numerical modeling using the EGAK code. The criteria of instability transition to the turbulent stage are proposed.

About the authors

E. V Bodrov

Russian Federal Nuclear Center – All-Russian Science and Research Institute of Experimental Physics

Sarov, Russia

D. O Kochetkov

Russian Federal Nuclear Center – All-Russian Science and Research Institute of Experimental Physics

Sarov, Russia

E. V Levkina

Russian Federal Nuclear Center – All-Russian Science and Research Institute of Experimental Physics

Email: EVLevkina@vniief.ru
Sarov, Russia

N. V Nevmerzhitskii

Russian Federal Nuclear Center – All-Russian Science and Research Institute of Experimental Physics

Email: postmaster@ifv.vniief.ru
Sarov, Russia

V. P Statsenko

Russian Federal Nuclear Center – All-Russian Science and Research Institute of Experimental Physics

Sarov, Russia

Yu. V Tretyachenko

Russian Federal Nuclear Center – All-Russian Science and Research Institute of Experimental Physics

Sarov, Russia

I. R Farin

Russian Federal Nuclear Center – All-Russian Science and Research Institute of Experimental Physics

Sarov, Russia

Yu. V Yanilkin

Russian Federal Nuclear Center – All-Russian Science and Research Institute of Experimental Physics

Sarov, Russia

References

  1. Taylor G.I. The instability of liquid surfaces when accelerated in a direction perpendicular to their planes. I. // Proc. Roy Soc. A. 1950. V 201. Р 192-196.
  2. Richtmyer R.D. Taylor instability in shock acceleration of compressible fluids // Commun. Pure Appl. Math. 1960. V. 13. №2. Р. 297-319.
  3. Мешков Е.Е. Неустойчивость границы раздела двух газов, ускоряемой ударной волной. Изв. АН СССР. МЖГ. 1969. № 5. С. 151-158.
  4. Helmholtz H.L.F. Uber discontinuirlish Flussigkeits-Bewegungen // Monatsberischte Konigl. Preus. Akad. Wiss. Berlin. 1868. V. 23. P. 215-228.
  5. Брагин М.Д., Гуськов С.Ю., Змитренко Н.В., Кучугов П.А. и др. Экспериментальное и численное исследование динамики развития неустойчивости Рэлея-Тейлора при числах Атвуда, близких к единице // Матем. моделир. 2023. Т. 35. № 1. С. 5982.
  6. Невмержицкий Н.В. Гидродинамические неустойчивости и турбулентное перемешивание веществ. Лабораторное моделирование. / Под ред. д.т.н. А.Л. Михайлова. Саров: ФГУП “РФЯЦ-ВНИИЭФ”. 2018. 246 с.
  7. Янилкин Ю.В., Беляев С.П., Бондаренко Ю.А., Гаврилова Е.С., Гончаров Е.А., Горбенко А.Д., Городничев А.В., Губков Е.В., Гужова А.Р., Дегтяренко Л.И., Журова Г.В., Колобянин В.Ю., Софронов В.Н., Стадник А.Л., Ховрин Н.А., Чернышова О.Н., Чистякова И.Н., Шемяков В.Н. Эйлеровы численные методики ЭГАК и ТРЭК для моделирования многомерных течений многокомпонентной среды // Тр. РФЯЦ-ВНИИЭФ. 2008. Вып. 12. С. 54-65.
  8. Linden P.F., Redondo J.M., Youngs D.L. Molecular mixing in Rayleigh-Taylor instability//J. Fluid Mech. 1994. V 265. Р. 97-124.
  9. Dimonte G., Youngs D. L., Dimits A. et al. A comparative study of the turbulent Rayleigh-Teylor instability using highresolution three-dimensonal numerical simulations: The Alpha-Group collaboration // Phys. Fluids. 2004. V. 16. N. 5. P. 1668-1693.

Supplementary files

Supplementary Files
Action
1. JATS XML
Download

Copyright (c) 2024 Russian Academy of Sciences