TRANSIENT CHARACTERISTICS OF COUPLED THERMAL RADIATION AND NATURAL-CONVECTION IN A 3-D CYLINDRICAL CAVITY CONTAINING A HEATED PLATE

被引：0
|
作者：
Wang, Tianxiang [1 ]
Qiu, Yinan [1 ]
Lei, Gang [1 ]
Zhang, Jinjin [2 ]
Huang, Yonghua [2 ]
Yang, Guang [2 ]
机构：
[1] State Key Lab Technol Space Cryogen Propellants, Beijing, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai, Peoples R China
来源：
THERMAL SCIENCE | 2023年 / 27卷 / 3B期
基金：
中国国家自然科学基金;
关键词：
natural-convection; radiation; numerical simulation; dynamic characteristics; heated plates; FLOW;
D O I：
10.2298/TSCI220523135W
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this study, a numerical study of transient combined natural-convection and surface radiation in a cylindrical cavity with a heated plate placed inside is carried out using the open-source platform OpenFOAM. The effects of the Rayleigh number (105 < Ra < 107), inclination angle (0o < & phi; < 90)o, and surface emissivity (0 < & epsilon; < 1) on the velocity components, temperature field, and Nusselt number are investigated in detail. Results show that the Rayleigh number has a greater effect on the radiative heat transfer than on natural-convection. Radiative heat transfer increases monotonously with the increase of surface emissivity, and its contribution could be over 50% of the total heat transfer rate. The inclination angle of the plate affects the flow structure, but the difference in total Nusselt number is less than 10% for various inclination angles. Results in this study provide insights into the transient characteristics of coupled thermal radiation and natural-convection in a 3-D cavity and will guide the optimal design of related devices.
引用
收藏
页码：2377 / 2390
页数：14
相关论文
共 42 条
  • [21] Study of turbulent natural convection coupled with thermal radiation in a vertical cavity having a large form factor
    Rahmoune, Imene
    Bougoul, Saadi
    HEAT TRANSFER, 2021, 50 (01) : 145 - 157
  • [22] Effect of surface thermal radiation on natural convection and heat transfer in a cavity containing a horizontal porous layer
    Wang, Yuancheng
    Yang, Jun
    Zhang, Xiaojing
    Pan, Yu
    9TH INTERNATIONAL SYMPOSIUM ON HEATING, VENTILATION AND AIR CONDITIONING (ISHVAC) JOINT WITH THE 3RD INTERNATIONAL CONFERENCE ON BUILDING ENERGY AND ENVIRONMENT (COBEE), 2015, 121 : 1193 - 1199
  • [23] Transient natural convection in 3D tilted enclosure heated from two opposite sides
    Ben Beya, Brahim
    Lili, Taieb
    INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2009, 36 (06) : 604 - 613
  • [24] Numerical analysis of 3D regimes of natural convection and surface radiation in a differentially heated enclosure
    S. G. Martyushev
    M. A. Sheremet
    Journal of Engineering Thermophysics, 2015, 24 : 22 - 32
  • [25] 3-D Numerical Study of Hydromagnetic Double Diffusive Natural Convection and Entropy Generation in Cubic Cavity
    Maatki, C.
    Hassen, W.
    Kolsi, L.
    AlShammari, N.
    Borjini, M. Naceur
    Aissia, H. B.
    JOURNAL OF APPLIED FLUID MECHANICS, 2016, 9 (04) : 1915 - 1925
  • [26] Experimental and numerical investigation on natural convection heat transfer characteristics of vertical 3-D externally finned tubes
    Ding, Yudong
    Zhang, Wenhe
    Deng, Bin
    Gu, Yuheng
    Liao, Qiang
    Long, Zhenze
    Zhu, Xun
    ENERGY, 2022, 239
  • [27] 3D large eddy simulation (LES) calculations and experiments of natural convection in a laterally-heated cylindrical enclosure for crystal growth
    Enayati, Hooman
    Chandy, Abhilash J.
    Braun, Minel J.
    Horning, Nicholas
    INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2017, 116 : 1 - 21
  • [28] Combined thermal radiation and natural convection in a cavity containing a discrete heater: Effects of nature of heating and heater aspect ratio
    Saravanan, S.
    Sivaraj, C.
    INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2017, 66 : 70 - 82
  • [29] Investigation of natural convection characteristics in the molding chamber of a 3-D printer cooled by thermoelectric cooling modules
    He, Bing
    Chen, Weiwei
    Tan, Xiaoming
    Zhang, Jingzhou
    Li, Xinjun
    INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2022, 224
  • [30] MRT-scheme applied to combined natural convection and thermal radiation in a cavity partially heated from one vertical side and cooled from above
    Rehhali, K.
    Hasnaoui, M.
    Raji, A.
    Alouah, M.
    El Mansouri, A.
    Beji, H.
    MATERIALS & ENERGY I (2015) / MATERIALS & ENERGY II (2016), 2017, 139 : 444 - 449
12345