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Research on the virtual reality of impact of appendages on the flow characteristics of submarines based on neural networks and CFD

  • Neural Computing in Next Generation Virtual Reality Technology
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Abstract

Three models with different submarine structure were established firstly, and then, flow fields of the three different structures were computed and compared through FLUENT software. As a result, the virtual reality of the flow characteristics of submarines was also researched and presented through some contours in this paper. As known from the result, the flow field speed around the submarine was significantly reduced but the pressure on the submarine was enlarged if the submarine had a podium, mainly due to a certain vortex existing around the podium. Besides, after the adoption of a cruciform tail, a significant improvement was shown in the flow field around the submarine and flow field on the surface, thus indicating the severe impact generated by the submarine tail on the flow field characteristics of the submarine. Therefore, the tail type of the submarine should be designed strictly during the design process of submarine structure. Finally, BP neural network was applied to compute the total resistance coefficient of the submarine and compare it with the calculation result of CFD to obtain a small relative error. It indicated that it was reliable to use BP neural network to predict the total resistance coefficient of the submarine.

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Acknowledgement

The project is supported by the National Natural Science Foundation (61074151) and (11371002) and Specialized Research Fund for the Doctoral Program of Higher Education (20131101110048).

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Authors and Affiliations

  1. School of Mathematics and Statistics, Beijing Institute of Technology, Beijing, 100081, People’s Republic of China

    Qiu-mei Liu

  2. College of Science, North China University of Science and Technology, Tangshan, 063000, Hebei, People’s Republic of China

    Qiu-mei Liu

  3. Department of Mechanical and Electrical Engineering, Tangshan College, Tangshan, 063000, Hebei, People’s Republic of China

    Xin Gao

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  1. Qiu-mei Liu
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  2. Xin Gao
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Correspondence to Qiu-mei Liu.

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Liu, Qm., Gao, X. Research on the virtual reality of impact of appendages on the flow characteristics of submarines based on neural networks and CFD. Neural Comput & Applic 29, 1293–1301 (2018). https://doi.org/10.1007/s00521-017-2866-2

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  • DOI: https://doi.org/10.1007/s00521-017-2866-2

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