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Volume 33 Issue 04
Apr.  2007
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Journal of Beijing University of Aeronautics and Astronautics  > 2007  >  33(04): 401-404.
Ding Shuiting, Wei Xia, Tao Zhi, et al. Heat transfer analysis using ANN with experimental data of 180° turn channels with rib turbulators[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(04): 401-404. (in Chinese)
Citation: Ding Shuiting, Wei Xia, Tao Zhi, et al. Heat transfer analysis using ANN with experimental data of 180° turn channels with rib turbulators[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(04): 401-404. (in Chinese)
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Heat transfer analysis using ANN with experimental data of 180° turn channels with rib turbulators

  • National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 15 May 2006
  • Publish Date: 30 Apr 2007
    Abstract
  • The heat transfer character inside the 180° turn channel with variable cross-section and different rib turbulators was studied by experiment. The channel is the middle part of a gas turbine blade. The data set evaluated by the experiment was processed by dividing the channel into several sections. A feed-forward neural network based on back-propagation algorithm (BP) was evolved with levenberg-marquardt(LM) algorithm and Bayesian regularization, and a model was established for the result referred before using BP net. It is validated by being compared with curve regression that it is available to use artificial neural networks (ANN) to predict heat transfer character of channel inside a gas turbine blade. And it-s much more efficient than curve regression.

     

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  • [1] 周开利,康耀红.神经网络模型及其MATLAB程序设计[M].北京:清华大学出版社,2005 Zhou Kaili,Kang Yaohong. Model of neural net work and design with Matlab[M]. Beijing:Publishing Company of Tsinghua University,2005(in Chinese) [2] 刘湘云,丁水汀,陶智,等.横肋变截面U通道内换热特性的实验研究[J].工程热物理学报,2004,25(5):858-860 Liu Xiangyun, Ding Shuiting, Tao Zhi, et al. Experimental study of heat transfer characteristics in the U shaped channels with variable cross-section and rib [J]. Journal of Engineering Thermophysics, 2004, 25(5):858-860(in Chinese) [3] Hagen M T, Menhaj M B. Training feed-forward networks with the Levenberg-Marquardt algorithm IEEE Trains Neural Networks,1994,5(6):989-993 [4] Foresee F D, Hagan M T. Gauss-Newton approximation to Bayesian regularization Proceedings of the 1997 International Joint Conference on Neural Networks,1997:1930-1935
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