Head optimization design for small commercial AUV based on CFD

Abstract

As more and more attention is paid to the ocean in today's world, autonomous underwater vehicle (AUV) is widely used. At present, a variety of AUVs has been put into commercial use. For AUV, its underwater resistance is very important to its performance of AUV, and the geometry of AUV is the key factor affecting the underwater resistance. Considering the difficulty and cost of production, most commercial AUVs adopt a torpedo rotary design. In this paper, for the commercial small AUV, we make an optimal design of its head by a parabola. Compared with the popular commercial AUV product, REMUS100, the underwater resistance of AUV design is analyzed by ANSYS Fluent calculation. We also analyze the head stress of AUV by ANSYS Mechanical. The head optimization design of AUV based on the parabola is obtained, which provides a reference for the design of small commercial AUVs in the future.