Elusive transition to the ultimate regime of turbulent Rayleigh-Benard convection

被引:13
|
作者
Urban, P. [1 ]
Hanzelka, P. [1 ]
Kralik, T. [1 ]
Macek, M. [1 ]
Musilova, V [1 ]
Skrbek, L. [2 ]
机构
[1] Czech Acad Sci, Inst Sci Instruments, Kralovopolska 147, Brno, Czech Republic
[2] Charles Univ Prague, Fac Math & Phys, Ke Karlovu 3, Prague, Czech Republic
关键词
THERMAL-CONVECTION; STATE;
D O I
10.1103/PhysRevE.99.011101
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
By using cryogenic He-4 gas as the working fluid in a cylindrical cell 0.3 m in both height and diameter, we study the influence of non-Oberbeck-Boussinesq (NOB) effects on the heat transfer in turbulent Rayleigh-Benard convection (RBC). We show that the NOB effects increase the heat transfer efficiency when the top plate temperature closely approaches the saturation vapor curve even far away from the critical point. Viewed in this light, our analysis points to the likelihood that the claim of having observed the transition to Kraichnan's ultimate regime, under nominally similar conditions in the experiments with SF6 [Phys. Rev. Lett. 108, 024502 (2012)], is probably an NOB effect and the important issue of the transition to the ultimate state of RBC remains open.
引用
收藏
页数:5
相关论文
共 50 条
  • [11] Absence of Evidence for the Ultimate State of Turbulent Rayleigh-Benard Convection
    Doering, Charles R.
    [J]. PHYSICAL REVIEW LETTERS, 2020, 124 (22)
  • [12] Asymptotic ultimate regime of homogeneous Rayleigh-Benard convection on logarithmic lattices
    Barral, Amaury
    Dubrulle, Berengere
    [J]. JOURNAL OF FLUID MECHANICS, 2023, 962
  • [13] Absence of Evidence for the Ultimate State of Turbulent Rayleigh-Benard Convection Reply
    He, Xiaozhou
    Funfschilling, Denis
    Nobach, Holger
    Bodenschatz, Eberhard
    Ahlers, Guenter
    [J]. PHYSICAL REVIEW LETTERS, 2020, 124 (22)
  • [14] Measurements of Reynolds number near the transition to the ultimate-state of turbulent Rayleigh-Benard convection
    He, X.
    Funfschilling, D.
    Nobach, H.
    Bodenschatz, E.
    [J]. THMT-12. PROCEEDINGS OF THE SEVENTH INTERNATIONAL SYMPOSIUM ON TURBULENCE, HEAT AND MASS TRANSFER, 2012, : 1403 - 1406
  • [15] Asymmetries in Turbulent Rayleigh-Benard Convection
    du Puits, Ronald
    Resagk, Christian
    Thess, Andre
    [J]. PROGRESS IN TURBULENCE III, 2010, 131 : 179 - 182
  • [16] The turbulent regimes of Rayleigh-Benard convection
    Chavanne, X
    Chilla, F
    Castaing, B
    Chabaud, B
    Hebral, B
    Roche, P
    [J]. ADVANCES IN TURBULENCE VII, 1998, 46 : 461 - 464
  • [17] Turbulent superstructures in Rayleigh-Benard convection
    Pandey, Ambrish
    Scheel, Janet D.
    Schumacher, Joerg
    [J]. NATURE COMMUNICATIONS, 2018, 9
  • [18] Turbulent Rotating Rayleigh-Benard Convection
    Ecke, Robert E.
    Shishkina, Olga
    [J]. ANNUAL REVIEW OF FLUID MECHANICS, 2023, 55 : 603 - 638
  • [19] Absence of Evidence for the Ultimate Regime in Two-Dimensional Rayleigh-Benard Convection
    Doering, C. R.
    Toppaladoddi, S.
    Wettlaufer, J. S.
    [J]. PHYSICAL REVIEW LETTERS, 2019, 123 (25)
  • [20] Transition to chaos in the Rayleigh-Benard convection
    Yahata, H
    [J]. JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2000, 69 (05) : 1384 - 1388