| Morphological Measurement and Analysis of Gymnarchus Niloticus |
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| 作者姓名： | Hu Tian-jiang Li Fei Wang Guang-ming Shen Lin-cheng |
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| 作者单位： | College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha 410073, P. R. China |
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| 摘 要： | Gymnarchus niloticus swims by undulations of a long-based dorsal fin, while its body axis is in many cases held straight during swimming. This paper provides a brief relevant introduction to Gymnarchus niloticus , which belongs to the African freshwater electric eels but can inspire our bionic interests in propulsion besides its abilities in electric sensing. A special larva of Gymnarchus niloticus was morphologically measured by photographing it with a piece of scale-calibrated paper as the background. Then we analyzed the data by a CFD-aided approach. Detailed flow patterns around the larva and a NACA0012 hydrofoil were respectively calculated and visualized at the Reynolds number of 7350 or so. The results show that the profile of Gymnarchus niloticus is well streamlined.
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| 关 键 词： | 仿生学 体育运动 游泳 身体结构 形态学 CFD分析 |
| 文章编号： | 1672-6529（2005）01-0025-07 |
Morphological Measurement and Analysis of Gymnarchus Niloticus |
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| Hu Tian-jiang Li Fei Wang Guang-ming Shen Lin-cheng.Morphological Measurement and Analysis of Gymnarchus Niloticus[J].Journal of Bionics Engineering,2005,2(1):25-31. |
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| Authors: | Hu Tian-jiang Li Fei WANG Guang-ming SHEN Lin-cheng |
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| Institution: | Hu Tian-jiang(College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha 410073, P. R . China)；Li Fei(College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha 410073, P. R . China)；WANG Guang-ming(College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha 410073, P. R . China)；SHEN Lin-cheng(College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha 410073, P. R . China)； |
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| Abstract: | Gyrnnarchus niloticus swims by undulations of a long-based dorsal fin, while its body axis is in many cases held straight during swimming. This paper provides a brief relevant introduction to Gyrnnarchus niloticus, which belongs to the African freshwater electric eels but can inspire our bionic interests in propulsion besides its abilities in electric sensing. A special larva of Gyrnnarchus niloticus was morphologically measured by photographing it with a piece of scale-calibrated paper as the background. Then we analyzed the data by a CFD-aided approach. Detailed flow patterns around the larva and a NACA0012 hydrofoil were respectively calculated and visualized at the Reynolds number of 7350 or so. The results show that the profile of Gyrnnarchus niloticus is well streamlined. |
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| Keywords: | bionic Gymnarchus niloticus morphological measurement CFD-based analysis streamlined profile |
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