Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise Flexibility
Bionic foils are usually similar in shape to the locomotive organs of animals living in fluid media, which is helpful in the analysis of the motion mode and hydrodynamic mechanisms of biological prototypes. With the design of underwater vehicles as the research background, bionic foils are adopted a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/7/11/1120 |
| _version_ | 1811273748695744512 |
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| author | Kai Zhou Junkao Liu Weishan Chen |
| author_facet | Kai Zhou Junkao Liu Weishan Chen |
| author_sort | Kai Zhou |
| collection | DOAJ |
| description | Bionic foils are usually similar in shape to the locomotive organs of animals living in fluid media, which is helpful in the analysis of the motion mode and hydrodynamic mechanisms of biological prototypes. With the design of underwater vehicles as the research background, bionic foils are adopted as research objects in this paper. A geometric model and a motion model are established depending on the biological prototype. In the model, two typical bionic foils―a NACA foil and a crescent-shaped foil―are chosen as research objects. Simulations of the bionic foils are performed using a numerical method based on computational fluid dynamics software. The hydrodynamic forces acting on the foils and flow field characteristics behind the foils are used to analyze the propulsion performance and hydrodynamic mechanism. Furthermore, a spanwise flexibility model is introduced into the motion model. Next, the hydrodynamic mechanism is further analyzed on the basis of hydrodynamic forces and flow field characteristics with different spanwise flexibility parameters. Finally, an experimental verification platform is designed and built to verify the reliability of the numerical results. Agreement between the experimental and numerical results indicates that the numerical results are reliable and that the analysis of the paper is reasonable. |
| first_indexed | 2024-04-12T23:06:06Z |
| format | Article |
| id | doaj.art-c25d4f978ea748b0bd3c9153ff05aa8d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-12T23:06:06Z |
| publishDate | 2017-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-c25d4f978ea748b0bd3c9153ff05aa8d2022-12-22T03:12:55ZengMDPI AGApplied Sciences2076-34172017-10-01711112010.3390/app7111120app7111120Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise FlexibilityKai Zhou0Junkao Liu1Weishan Chen2College of Mechanical and Electronic Engineering, Shandong Agricultural University, Taian 271018, ChinaState Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, ChinaState Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, ChinaBionic foils are usually similar in shape to the locomotive organs of animals living in fluid media, which is helpful in the analysis of the motion mode and hydrodynamic mechanisms of biological prototypes. With the design of underwater vehicles as the research background, bionic foils are adopted as research objects in this paper. A geometric model and a motion model are established depending on the biological prototype. In the model, two typical bionic foils―a NACA foil and a crescent-shaped foil―are chosen as research objects. Simulations of the bionic foils are performed using a numerical method based on computational fluid dynamics software. The hydrodynamic forces acting on the foils and flow field characteristics behind the foils are used to analyze the propulsion performance and hydrodynamic mechanism. Furthermore, a spanwise flexibility model is introduced into the motion model. Next, the hydrodynamic mechanism is further analyzed on the basis of hydrodynamic forces and flow field characteristics with different spanwise flexibility parameters. Finally, an experimental verification platform is designed and built to verify the reliability of the numerical results. Agreement between the experimental and numerical results indicates that the numerical results are reliable and that the analysis of the paper is reasonable.https://www.mdpi.com/2076-3417/7/11/1120bionic foilpropulsion performancebiological swimmingflow field characteristics |
| spellingShingle | Kai Zhou Junkao Liu Weishan Chen Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise Flexibility Applied Sciences bionic foil propulsion performance biological swimming flow field characteristics |
| title | Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise Flexibility |
| title_full | Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise Flexibility |
| title_fullStr | Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise Flexibility |
| title_full_unstemmed | Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise Flexibility |
| title_short | Study on the Hydrodynamic Performance of Typical Underwater Bionic Foils with Spanwise Flexibility |
| title_sort | study on the hydrodynamic performance of typical underwater bionic foils with spanwise flexibility |
| topic | bionic foil propulsion performance biological swimming flow field characteristics |
| url | https://www.mdpi.com/2076-3417/7/11/1120 |
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