PLANFORM STRUCTURE OF TURBULENT RAYLEIGH-BENARD CONVECTION

被引：13
|
作者：
THEERTHAN, SA
ARAKERI, JH
机构：
[1] Department of Mechanical Engineering Indian Institute of Science, Bangalore
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 1994年 / 21卷 / 04期
关键词：
D O I：
10.1016/0735-1933(94)90055-8
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The planform structure of turbulent Rayleigh-Benard convection is obtained from visualising a liquid crystal sheet stuck to the bottom hot surface. The bottom plate of the convection cell is Plexiglas and the top plate is glass. Water is the test liquid and the Rayleigh number is 4 x 10(7). The planform pattern reveals randomly moving hot streaks surrounded by cold regions suggesting that turbulent Rayleigh-Benard convection is dominated by quasi-two-dimensional randomly moving plumes. Simultaneous temperature traces from two vertically separated thermocouples indicate that these plumes may be inclined forward in the directon of horizontal motion. The periodic eruption of thermals observed by Sparrow et al [3] and which forms the basis of Howard's model is not observed.
引用
收藏
页码：561 / 572
页数：12
相关论文
共 50 条
  • [31] Onset of coherent oscillations in turbulent Rayleigh-Benard convection
    Qiu, XL
    Tong, P
    [J]. PHYSICAL REVIEW LETTERS, 2001, 87 (09)
  • [32] Multiple Transitions in Rotating Turbulent Rayleigh-Benard Convection
    Wei, Ping
    Weiss, Stephan
    Ahlers, Guenter
    [J]. PHYSICAL REVIEW LETTERS, 2015, 114 (11)
  • [33] Local heat fluxes in turbulent Rayleigh-Benard convection
    Shishkina, Olga
    Wagner, Claus
    [J]. PHYSICS OF FLUIDS, 2007, 19 (08)
  • [34] Settling of inertial particles in turbulent Rayleigh-Benard convection
    Patocka, Vojtech
    Calzavarini, Enrico
    Tosi, Nicola
    [J]. PHYSICAL REVIEW FLUIDS, 2020, 5 (11)
  • [35] Low frequency oscillations in turbulent Rayleigh-Benard convection
    Krishnamurti, R
    [J]. SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 1998, 23 (5-6): : 605 - 613
  • [36] On the evolution of flow topology in turbulent Rayleigh-Benard convection
    Dabbagh, F.
    Trias, F. X.
    Gorobets, A.
    Oliva, A.
    [J]. PHYSICS OF FLUIDS, 2016, 28 (11)
  • [37] Turbulent Rayleigh-Benard convection in gaseous and liquid He
    Chavanne, X
    Chillà, F
    Chabaud, B
    Castaing, B
    Hébral, B
    [J]. PHYSICS OF FLUIDS, 2001, 13 (05) : 1300 - 1320
  • [38] On the role of roughness valleys in turbulent Rayleigh-Benard convection
    Belkadi, Mebarek
    Sergent, Anne
    Fraigneau, Yann
    Podvin, Berengere
    [J]. JOURNAL OF FLUID MECHANICS, 2021, 923
  • [39] Boundary layer fluctuations in turbulent Rayleigh-Benard convection
    Wang, Yin
    Xu, Wei
    He, Xiaozhou
    Yik, Hiufai
    Wang, Xiaoping
    Schumacher, Jorg
    Tong, Penger
    [J]. JOURNAL OF FLUID MECHANICS, 2018, 840 : 408 - 431
  • [40] Thermal boundary layers in turbulent Rayleigh-Benard convection
    du Puits, R.
    Resagk, C.
    Thess, A.
    [J]. ADVANCES IN TURBULENCE XII - PROCEEDINGS OF THE 12TH EUROMECH EUROPEAN TURBULENCE CONFERENCE, 2009, 132 : 589 - 592
12345