Analysis of thermal dissipation rates based on direct numerical and large-eddy Simulations of turbulent Rayleigh-Benard convection

被引：0
|
作者：
Shishkina, Olga [1 ]
Wagner, Claus [1 ]
机构：
[1] DLR, Inst Aerodynam & Flow Technol, Bunsenstr 10, D-37073 Gottingen, Germany
来源：
PROGRESS IN TURBULENCE II | 2007年 / 109卷
关键词：
D O I：
暂无
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Two functions sigma and tau are defined to determine quantitatively the role of the turbulent background in thermal convection. Evaluating these functions from the data generated in the Direct Numerical Simulations (DNS) and Large-Eddy Simulations (LES) of turbulent Rayleigh-Benard convection in wide cylindrical containers it is shown that the turbulent background contribution to the volume averaged thermal dissipation rate increases with the Rayleigh number.
引用
收藏
页码：201 / +
页数：2
相关论文
共 50 条
  • [21] Statistics of the locally averaged thermal dissipation rate in turbulent Rayleigh-Benard convection
    He, Xiaozhou
    Tong, Penger
    Ching, Emily S. C.
    JOURNAL OF TURBULENCE, 2010, 11 (35): : 1 - 10
  • [22] Large-eddy simulation and deduced scaling analysis of Rayleigh-Benard convection up to Ra=109
    Peng, S. -H.
    Hanjalic, K.
    Davidson, L.
    JOURNAL OF TURBULENCE, 2006, 7 (66): : 1 - 29
  • [23] Two-scalar turbulent Rayleigh-Benard convection: numerical simulations and unifyingtheory
    Yang, Yantao
    Verzicco, Roberto
    Lohse, Detlef
    JOURNAL OF FLUID MECHANICS, 2018, 848 : 648 - 659
  • [24] New subgrid-scale models for large-eddy simulation of Rayleigh-Benard convection
    Dabbagh, F.
    Trias, F. X.
    Gorobets, A.
    Oliva, A.
    7TH EUROPEAN THERMAL-SCIENCES CONFERENCE (EUROTHERM2016), 2016, 745
  • [25] Thermal boundary layers in turbulent Rayleigh-Benard convection
    du Puits, R.
    Resagk, C.
    Thess, A.
    ADVANCES IN TURBULENCE XII - PROCEEDINGS OF THE 12TH EUROMECH EUROPEAN TURBULENCE CONFERENCE, 2009, 132 : 589 - 592
  • [26] Numerical simulations of flow reversal in Rayleigh-Benard convection
    Benzi, R.
    Verzicco, R.
    EPL, 2008, 81 (06)
  • [27] Large eddy simulations of Rayleigh-Benard convection using subgrid scale estimation model
    Kimmel, SJ
    Domaradzki, JA
    PHYSICS OF FLUIDS, 2000, 12 (01) : 169 - 184
  • [28] Assimilation and extension of particle image velocimetry data of turbulent Rayleigh-Benard convection using direct numerical simulations
    Bauer, C.
    Schiepel, D.
    Wagner, C.
    EXPERIMENTS IN FLUIDS, 2022, 63 (01)
  • [29] Direct numerical simulation of turbulent Rayleigh-Benard convection using a higher order scheme
    De, A. K.
    Eswaran, V.
    PROCEEDINGS OF THE ASME/JSME THERMAL ENGINEERING SUMMER HEAT TRANSFER CONFERENCE 2007, VOL 1, 2007, : 353 - 359
  • [30] Thermal Boundary Layer Equation for Turbulent Rayleigh-Benard Convection
    Shishkina, Olga
    Horn, Susanne
    Wagner, Sebastian
    Ching, Emily S. C.
    PHYSICAL REVIEW LETTERS, 2015, 114 (11)
12345