Morphological Measurement and Analysis of Gymnarchus Niloticus |
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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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