Volumes and Issues
Home » Technical Physics » Year 2026, issue 4 » Article p. 623
<<<>>>
Turbulence mixing computational and experimental modeling of coolant flows with different temperatures
Russian version
Matsin N. V. 1, Ryazapov R. R. 2, Sobornov A. E. 1, Kotin A. V. 1
1Alekseev State Technical University, Nizhny Novgorod, Russia
2Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia
Email: lebron.09@mail.ru, ryazapov.renat@gmail.com, wisestjedi@mail.ru, an.kotin@yandex.ru
PDF
The experimental model reproduces configuration flow part to the high-temperature one with a coefficient of geometric similarity K = 4/3. The "dye injection" method was used to visualize the flow in the mixing region. The LES approach for the spatial and temporal resolution of turbulent structures was used. Unresolved scales description in Ansys Fluent was carried out by the WALE subgrid-scale model, in FlowVision software the Smagorinsky model was applied. It was shown that the WALE model mathematical formulation combined with block-structured mesh ensures better adaptation to variations in task input parameters. Temperature fluctuations power spectral density distributions in the inertial interval follow the -5/3" law characteristic of a passive scalar in locally isotropic turbulence. Turbulent kinetic energy distributions evaluation has uncovered vortex structures mechanism during mixing process. Analysis showed that FlowVision software is less accurate in simulating crucial features of the mixing process. The obtained data will be used for further mixing process calculating at the pressurized water reactor (PWR) operating parameters. Keywords: temperature fluctuations, scale-resolving simulation, turbulent kinetic energy, Y-junction, spectral analysis
  1. F.M. Mitenkov, V.B. Kaidalov, Yu.G. Korotkih, V.A. Panov, S.N. Pichkov. Metody obosnovaniya resursa yadernykh energeticheskih ustanovok (Mashinostroenie, M., 2007) (in Russian)
  2. A.V. Sudakov, A.S. Trofimov. Pul'satsii temperatur i dolgovechnost' elementov energooborudovaniya (Energoatomizdat, LO, L., 1989) (in Russian)
  3. M.S. Chen, H.E. Hsieh, Y.M. Ferng, B.S. Pei. Nucl. Eng. Des., 276, 107 (2014). DOI: 10.1016/j.nucengdes.2014.03.052
  4. G.Y. Chuang, Y.M. Ferng. Appl. Therm. Eng., 113, 1585 (2017). DOI: 10.1016/j.applthermaleng.2016.10.157
  5. P. Karthick Selvam, R. Kulenovic, E. Laurien, J. Kickhofel, H.-M. Prasser. Nucl. Eng. Des., 322, 32 (2017). DOI: 10.1016/j.nucengdes.2017.06.041
  6. S.M. Dmitrie, R.R. Ryazapov, A.V. Mamaev, A.E. Sobornov, A.V. Kotin, M.A. Legchanov, A.V. L'vov. Pribory i metody izmerenii, 10 (1), 53 (2019) (in Russian). DOI: 10.21122/2220-9506-2019-10-1-53-60
  7. S.M. Dmitriev, A.V. Mamaev, R.R. Ryazapov, A.Ye. Sobornov, A.V. Kotin, D.Ye. Bescherov, M.A. Bolshukhin. NUCET, 5 (3), 225 (2019). DOI: 10.3897/nucet.5.39319
  8. R.R. Ryazapov, A.E. Sobornov, S.M. Dmitriev, N.V. Matsin, A.V. Kotin. Izvestiya vuzov. Yadernaya energetika, 1, 57 (2023) (in Russian). DOI: 10.26583/npe.2023.1.05
  9. R.R. Ryazapov, A.V. Mamaev, A.E. Sobornov, A.M. Kuskov, I.A. Kudahskin. VANT. Seriya: Yderno-reaktornye konstanty, 2, 203 (2023) (in Russian)
  10. P. Kakka, K. Anupindi. Int. J. Heat Mass Transfer, 153, 119593 (2020). https://doi.org/10.1016/j.ijheatmasstransfer.2020.119593
  11. M. Bergagio, W. Fan, R. Thiele, H. Anglart. Nucl. Eng. Des., 356, 110361 (2020). DOI: 10.1016/j.nucengdes.2019.110361
  12. C. Evrim, X. Chu, E. Laurien. Int. J. Heat Mass Transfer, 158 (6), 120019 (2020). DOI: 10.1016/j.ijheatmasstransfer.2020.120019
  13. A.V. Garbaruk, M.Kh. Strelets, M.L. Shur. Modelirovanie trubulentnosti v raschetakh slozhnykh techenii (Izd-vo Politekhn. un-ta, SPb., 2012) (in Russian)
  14. F. Nicoud, F. Ducros. Flow, Turbulence Combustion, 62 (3), 183 (1999). DOI: 10.1023/A:1009995426001
  15. ANSYS, Inc. ANSYS Fluent Theory Guide v19.0 (ANSYS Inc., Canonsburg, 2018)
  16. I.A. Belov, S.A. Isaev. Modelirovanie turbulentnykh techenii (BGTU, SPb., 2001) (in Russian)
  17. M. Kim, J. Lim, S. Kim, S. Jee, D. Park. Comput. Methods Appl. Mech. Eng., 371 (1), 113287 (2020). DOI: 10.1016/j.cma.2020.113287
  18. A.A. Aksenov, A.A. Dyadkin, V.I. Pokhilko. Proc. of 1998 ASME Pressure Vessels and Piping Division Conference (San Diego, USA, 1998), v. 377-1
  19. S.V. Zhlutkov, A.A. Aksenov. Komp'yuternye issledovaniya i modelirovaniye, 7 (6), 1221 (2015) (in Russian). DOI: 10.20537/2076-7633-2015-7-6-1221-1239
  20. S.B. Pope. Turbulent Flows (CUP, Cambridge, 2000)
  21. A.Yu. Snegirev. Vysokoproizvoditel'nye vychisleniya v tekhnicheskoi fizike. Chislennoe modelirovanie turbulentnykh techenii (Izd-vo Politekhn. un-ta, SPb., 2009) (in Russian)
  22. R.J. LeVeque. Finite Volume Methods for Hyperbolic Problems (CUP, Cambridge, 2002)
  23. A.A. Aksenov, S.V. Zhlutkov, V.I. Pokhilko, K.E. Sorokin. Komp'yuternye issledovaniya modelirovanie, 15 (4), 1009 (2023) (in Russian). DOI: 10.20537/2076-7633-2023-15-4-1009-1023
  24. S.A. Kharchenko. Vychislitel'nye metody i programmirovanie, 11 (4), 373 (2010) (in Russian)
  25. V.L. Yakushev, V.N. Simbirkin, A.V. Filimonov, P.A. Novikov, I.N. Kon'shin, G.B. Sushko, S.A. Kharchenko. Vestnik Nizhegorodskogo un-ta im. N.I. Lobachevskogo, (4-1), 238 (2012) (in Russian)
  26. P. Sagaut. Large Eddy Simulation for Incompressible Flows (Springer, Heidelberg, 2006)
  27. I.E. Idel'chik. Spravochnik po gidravlicheskim soprotivleniyam, pod red. M.O. Shteinberga (Mashinostroenie, M., 1992), s. 672 (in Russian)
  28. Z. Nan, X. Zhao, Y. Li, K. Zhang, N. Wang. Int. J. Heat Mass Transfer, 181, 121834 (2021). DOI: 10.1016/j.ijheatmasstransfer.2021.121834
  29. P. Buchhave, C. Velte. Phys. Fluids, 29 (8), 085109 (2017). DOI: 10.1063/1.4999102
  30. S.V. Borisenok. Izvestiya RGPU im. A.I. Gertsena,, 5 (13), 104 (2005) (in Russian)
  31. E. Sirbubalo, Ph.D. Thesis. (Darmstadt, Technische Universitat Darmstadt, 2012)
  32. K.N. Volkov, V.N. Emel'yanov. Modelirovanie krupnykh vikhrei v raschetakh turbulentnykh techenii (Fizmatlit, M., 2008) (in Russian).

Подсчитывается количество просмотров абстрактов ("html" на диаграммах) и полных версий статей ("pdf"). Просмотры с одинаковых IP-адресов засчитываются, если происходят с интервалом не менее 2-х часов.

Дата начала обработки статистических данных - 27 января 2016 г.

Publisher:

Ioffe Institute

Institute Officers:

Director: Sergei V. Ivanov

Contact us:

26 Polytekhnicheskaya, Saint Petersburg 194021, Russian Federation
Fax: +7 (812) 297 1017
Phone: +7 (812) 297 2245
E-mail: post@mail.ioffe.ru