Shape Optimization for Blended-Wing-Body Underwater Gliders with Structure Constraint

2021 ◽  
Author(s):  
Xing'an Liu ◽  
Dongli Ma ◽  
Cheng He ◽  
Xinglu Xia
Keyword(s):  
Shape Optimization ◽  
Underwater Gliders ◽  
Blended Wing Body ◽  
Structure Constraint

A simplified shape optimization strategy for blended-wing-body underwater gliders

2018 ◽  
Vol 58 (5) ◽  
pp. 2189-2202 ◽  
Author(s):  
Chengshan Li ◽  
Peng Wang ◽  
Huachao Dong ◽  
Xinjing Wang
Keyword(s):  
Shape Optimization ◽  
Optimization Strategy ◽  
Underwater Gliders ◽  
Blended Wing Body

scholarly journals A Double-Stage Surrogate-Based Shape Optimization Strategy for Blended-Wing-Body Underwater Gliders

2020 ◽  
Vol 34 (3) ◽  
pp. 400-410
Author(s):  
Cheng-shan Li ◽  
Peng Wang ◽  
Zhi-ming Qiu ◽  
Hua-chao Dong
Keyword(s):  
Shape Optimization ◽  
Optimization Strategy ◽  
Underwater Gliders ◽  
Blended Wing Body

scholarly journals Shape Optimization of Blended-Wing-Body Underwater Gliders Based on Free-Form Deformation

2020 ◽  
Vol 38 (3) ◽  
pp. 459-464
Author(s):  
Jinglu Li ◽  
Peng Wang ◽  
Xu Chen ◽  
Huachao Dong
Keyword(s):  
Shape Optimization ◽  
Fluid Dynamic ◽  
Free Form ◽  
Underwater Glider ◽  
Deformation Method ◽  
Underwater Gliders ◽  
Free Form Deformation ◽  
Unique Shape ◽  
Dynamic Performances ◽  
Blended Wing Body

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.

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