DIRECT NUMERICAL SIMULATION OF THE TURBULENT RAYLEIGH - BENARD CONVECTION IN A SLIGHTLY TILTED CYLINDRICAL CONTAINER

被引：5
|
作者：
Smirnov, S., I [1 ]
Smirnov, E. M. [1 ]
机构：
[1] Peter Great St Petersburg Polytech Univ, 29 Politech Skaya St, St Petersburg 195251, Russia
来源：
ST PETERSBURG POLYTECHNIC UNIVERSITY JOURNAL-PHYSICS AND MATHEMATICS | 2020年 / 13卷 / 01期
关键词：
Rayleigh - Benard convection; tilted container; turbulence; direct numerical simulation; large-scale circulation; THERMAL-CONVECTION; HEAT-TRANSFER; MERCURY; WIND;
D O I：
10.18721/JPM.13102
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Results of direct numerical simulation of the turbulent convection in a bottom-heated cylindrical container have been presented. The height-to-diameter ratio was equal to 1.0. The calculations were performed for two media: mercury (Pr = 0.025) and water (Pr = 6.4) at Ra = 10(6) and 10(8) respectively. To suppress possible azimuthal movements of the global vortex ( large-scale circulation) developing in the container, its axis was tilted a small angle with respect to the gravity vector. Structure of the time-averaged flow pattern symmetrical with respect to the central vertical plane was analyzed. Peculiarities of vortex structures developing in the corner zones were revealed. Representative profiles of the Reynolds stresses and components of the turbulent heat flux vector were obtained for the central vertical plane.
引用
收藏
页码：14 / 25
页数：12
相关论文
共 50 条
  • [1] Direct numerical simulation of Nusselt number scaling in rotating Rayleigh-Benard convection
    Kooij, G. L.
    Botchev, M. A.
    Geurts, B. J.
    INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2015, 55 : 26 - 33
  • [2] Numerical simulation of turbulent Rayleigh-Benard convection
    Palymskiy, Igor
    PROGRESS IN COMPUTATIONAL FLUID DYNAMICS, 2012, 12 (04): : 243 - 250
  • [3] Numerical simulation of turbulent Rayleigh-Benard convection
    Yang, HX
    Zhu, ZJ
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2006, 33 (02) : 184 - 190
  • [4] Comparison of computational codes for direct numerical simulations of turbulent Rayleigh-Benard convection
    Kooij, Gijs L.
    Botchev, Mikhail A.
    Frederix, Edo M. A.
    Geurts, Bernard J.
    Horn, Susanne
    Lohse, Detlef
    van der Poel, Erwin P.
    Shishkina, Olga
    Stevens, Richard J. A. M.
    Verzicco, Roberto
    COMPUTERS & FLUIDS, 2018, 166 : 1 - 8
  • [5] Turbulent Rayleigh-Benard convection in a cylindrical container with aspect ratio Γ=0.50 and Prandtl number Pr=4.38
    Weiss, Stephan
    Ahlers, Guenter
    JOURNAL OF FLUID MECHANICS, 2011, 676 : 5 - 40
  • [6] Numerical simulation of the Rayleigh-Benard convection under the influence of magnetic fields
    Yu, Xing-Xing
    Zhang, Jie
    Ni, Ming-Jiu
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2018, 120 : 1118 - 1131
  • [7] Turbulent Rotating Rayleigh-Benard Convection
    Ecke, Robert E.
    Shishkina, Olga
    ANNUAL REVIEW OF FLUID MECHANICS, 2023, 55 : 603 - 638
  • [8] Direct Solution of Three-dimensional Turbulent Rayleigh-Benard Convection
    Xu, Wei
    Bao, Yun
    Ding, Guangyu
    Zhang, Yaozhong
    APPLIED MECHANICS AND MATERIALS II, PTS 1 AND 2, 2014, 477-478 : 209 - 212
  • [9] Parallel direct numerical simulation and analysis of turbulent Rayleigh-Benard convection at moderate Rayleigh numbers using an efficient algorithm
    Yilmaz, Ilyas
    COMPUTERS & FLUIDS, 2020, 213 (213)
  • [10] Oscillating onset of the Rayleigh-Benard convection with viscoelastic fluids in a slightly tilted cavity
    Zheng, Xin
    Xin, Shihe
    Boutaous, M'hamed
    Wang, Chao
    Siginer, Dennis A.
    Cai, Wei-Hua
    PHYSICS OF FLUIDS, 2023, 35 (02)
12345