Open AccessResearch on Shape Optimization of Marine Magnetometer Based on Adjoint Method
Author(s) -
Xiaoxian Hu,
Yiqi Zhang,
Jian-fei Chai,
Mubarak Ali
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1302/4/042017
Subject(s) - magnetometer , underwater , drag , marine engineering , acoustics , pipeline transport , reduction (mathematics) , squid , physics , computer science , geology , magnetic field , engineering , mechanics , oceanography , mathematics , mechanical engineering , fishery , geometry , quantum mechanics , biology
There are many magnetic objects underwater, such as pipelines/pipelines, optical cables, cables, etc. Ocean magnetometer can locate and identify them. It is very important for the detection of underwater magnetic objects whether the marine magnetometer can be in a relatively stable state when it is moving underwater. Accordingly, shape optimization of marine magnetometer based on adjoint method is proposed. Firstly, a fluid region model is established to simulate the underwater motion of the marine magnetometer, and pressure and velocity maps are obtained. Then, the shape of the marine magnetometer is optimized by adjoint optimization technology. The simulation results show that the shape optimization of the ocean magnetometer makes the drag reduction rates of the front of the transponder part, the towed part and the side of the probe part become 40%, 35% and 27%, and the effect of optimization is obvious.