ZHANG Da-hai, LI Guo-qiang, XIE Gong-nan, SHI Zhen-chao. Numerical Research on Flow and Heat Transfer Performance in Rotating Channel With Hemispherical Dimples or Protrusions[J]. Applied Mathematics and Mechanics, 2013, 34(9): 965-975. doi: 10.3879/j.issn.1000-0887.2013.09.010
Citation: ZHANG Da-hai, LI Guo-qiang, XIE Gong-nan, SHI Zhen-chao. Numerical Research on Flow and Heat Transfer Performance in Rotating Channel With Hemispherical Dimples or Protrusions[J]. Applied Mathematics and Mechanics, 2013, 34(9): 965-975. doi: 10.3879/j.issn.1000-0887.2013.09.010

Numerical Research on Flow and Heat Transfer Performance in Rotating Channel With Hemispherical Dimples or Protrusions

doi: 10.3879/j.issn.1000-0887.2013.09.010
  • Received Date: 2013-03-11
  • Rev Recd Date: 2013-05-15
  • Publish Date: 2013-09-15
  • The convective heat transfer performance of internal cooling passage with hemispherical dimples or protrusions was numerically studied and the influence of Coriolis force on heat transfer characteristics in the channel flow was explored. It is found that: the leading edge of the channel shows weak flow impact with the increase of the rotation number, but there is a big wake and delayed flow reattachment; a smaller vortex and stronger jet exist in the dimple of the trailing edge, which make the heat transfer augmentation up to a maximum of 60%. With the increase of the rotation number, the overall Nusselt number decreases firstly and then increases.
  • loading
  • [1]
    刘高文, 张丽, 郭涛. 凹坑强化传热的研究进展回顾[J]. 航空动力学报, 2007,22(11): 17851791.(LIU Gao-wen, ZHANG Li, GUO Tao. Review of heat transfer enhancement for dimpled surface[J].Journal of Aerospace Power,2007,22(11): 1785-1791.(in Chinese))
    [2]
    Murata A, Mochizuki S. Effect of crosssectional aspect ratio on turbulent heat transfer in an orthogonally rotating rectangular smooth duct[J]. Interentional Journal of Heat and Mass Transfer,1999,42(20): 3803-3814.
    [3]
    Abdel W S, Tafti D K. Large eddy simulations of flow and heat transfer in a 90° ribbed duct with rotation: effect of Coriolis forces[C]// Proceedings of ASME Turbo Expo, 2004-GT-53796.
    [4]
    Kim S, Young J L, Eun Y C. Effect of dimple configuration on heat transfer coefficient in a rotating channel[J].Journal of Thermophysics and Heat Transfer,2011,25(1): 165-172.
    [5]
    Griffith T S, AlHadrami L, Han J C, Ligrani P. Heat transfer in rotating rectangular cooling channels (AR=4) with dimples[J]. Journal of Turbomachinery,2003,125(3): 555-563.
    [6]
    Ligrani P M, Harrison J L, Mahmmod G I, Hill M L. Flow structure due to dimple depressions on a channel surface[J]. Phys Fluids,2001,13(11): 3442-3451.
    [7]
    Mahmood G I, Ligrani P M. Heat transfer in a dimpled channel: combined influences of aspect ratio, temperature ratio, Reynolds number, and flow structure[J].Interentional Journal of Heat and MassTransfer,2002,45(10): 2011-2020.
    [8]
    Ligrani P M, Mahmood G I, Harrison J L, Clayton C M, Nelson D L. Flow structure and local Nusselt number variation in a channel with dimples and protrusions on opposite walls[J]. Interentional Journal of Heat and Mass Transfer,2001,44(23): 4413-4425.
    [9]
    Mahmood G I, Sabbagh M Z, Ligrani P M. Heat transfer in a channel with dimples and protrusions on opposite walls[J]. Journal of Thermophysics and Heat Transfer,2001,15(3): 275-283.
    [10]
    Lan J B, Xie Y H, Zhang D. Flow and heat transfer in microchannels with dimples and protrusions[J].Journal of Heat TransferTransactions of the ASME,2012,134(2): 021901.
    [11]
    Xie G N, Sunden B, Wang Q W. Predictions of enhanced heat transfer of an internal blade tipwall with hemispherical dimples or protrusions[J]. Journal of Turbomachinery,2011,133(4): 041005.
    [12]
    Xie G N, Sunden B, Zhang W H. Comparisons of pins/dimples/protrusions cooling concepts for a turbine blade tipwall at high Reynolds numbers[J]. Journal of Heat Transfer,2011,133(6): 061902.
    [13]
    赵鹏, 刘高文, 朱晓华, 刘玉峰. 间距对凹坑强化传热和流动阻力的影响[J]. 航空动力学报, 2009,24(10): 22662271.(ZHAO Peng, LIU Gao-wen, ZHU Xiao-hua, LIU Yu-feng. Influence of dimple space on heat transfer enhancement and pressure loss in a dimpled rectangular channel[J].Journal of Aerospace Power,2009,24(10): 22662271.(in Chinese))
    [14]
    彭力, 刘高文, 薛彪, 夏全忠. 涡轮叶片凸包强化传热的数值仿真研究[J]. 计算机仿真, 2011,28(11): 5053.(PENG Li, LIU Gao-wen, XUE Biao, XIA Quan-zhong. Numerical investigation of heat transfer enhancement using convexity in turbine blade[J]. Computer Simulation,2011,28(11): 5053. (in Chinese))
    [15]
    申仲旸, 谢永慧, 张荻. 布置球窝的U型冷却通道传热性能研究[J]. 西安交通大学学报, 2013,47(3): 108113.(SHEN Zhong-yang, XIE Yong-hui, ZHANG Di. Heat transfer performance of U-shaped coolant channel with dimple structure[J]. Journal of Xi’an Jiaotong University,2013,47(3): 108-113. (in Chinese))
    [16]
    申仲旸, 谢永慧, 张荻, 蓝吉兵. 不同球窝/凸结构的旋转矩形通道传热及阻力特性研究[J]. 西安交通大学学报, 2011,45(7): 89-94.(SHEN Zhong-yang, XIE Yong-hui, ZHANG Di, LAN Ji-bing. Heat transfer and flow friction performance of rotating rectangular channels with different dimple/protrusion structures[J]. Journal of Xi’an Jiaotong University,2011,45(7): 89-94. (in Chinese))
    [17]
    Elyyan M A, Tafti D K. Effect of Coriolis forces in a rotating channel with dimples and protrusions[J]. Interentional Journal of Heat and Fluid Flow,2010,31(1): 1-18.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1325) PDF downloads(1058) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return