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Shape Optimization of Blended-Wing-Body Underwater Gliders Based on Free-Form Deformation
- Source :
- Xibei Gongye Daxue Xuebao, Vol 38, Iss 3, Pp 459-464 (2020)
- Publication Year :
- 2020
- Publisher :
- The Northwestern Polytechnical University, 2020.
-
Abstract
- Currently developed underwater gliders can be roughly divided into the two types:traditional configuration and unconventional configuration. As a type of underwater gliders with unconventional configuration, a blended-wing-body (BWB) underwater glider has better fluid dynamic performances because of its unique shape. However, it is difficult to design the shape of the BWB underwater glider that has excellent hydrodynamic performances. Therefore, it is of great significance to optimize its shape, which this paper carries out by using the free-form deformation (FFD). The complete and automatic shape optimization framework is established by jointly using FFD parameterization method, CFD solver, optimization algorithm and mesh deformation method. The framework is used to optimize the shape of a BWB underwater glider. The average drag coefficient of the BWB underwater glider during its sinking and floating in one working period is used as the objective function to optimize its shape, with the volume constraints considered. The optimization results show that the gliding performance of the BWB underwater glider is remarkably enhanced.
- Subjects :
- Drag coefficient
Wing
Computer science
Underwater glider
business.industry
05 social sciences
General Engineering
050301 education
020101 civil engineering
TL1-4050
02 engineering and technology
Solver
Deformation (meteorology)
Computational fluid dynamics
bwb underwater glider
0201 civil engineering
shape optimization framework
free-form deformation
Shape optimization
Free-form deformation
business
0503 education
Marine engineering
Motor vehicles. Aeronautics. Astronautics
Subjects
Details
- Language :
- Chinese
- ISSN :
- 26097125 and 10002758
- Volume :
- 38
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Xibei Gongye Daxue Xuebao
- Accession number :
- edsair.doi.dedup.....7db1e9df7506d9e5671fe2001c12b92c