1. Hydrodynamic Coefficients Calculation of Complex-Shaped AUV Based on Lattice Boltzmann Method
- Author
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Yinpo Yan and Yuan Chen
- Subjects
Physics::Fluid Dynamics ,Moment (mathematics) ,Physics ,Work (thermodynamics) ,Viscosity ,Computer simulation ,business.industry ,Lattice Boltzmann methods ,Motion (geometry) ,Mechanics ,Computational fluid dynamics ,business ,Response spectrum - Abstract
The lattice Boltzmann method is a new computational fluid dynamics method, which can simulate several kinds of fluid problems. In this paper, a part of hydrodynamic coefficients of an AUV with a complex shape were obtained by a numerical simulation in CFD software based on lattice Boltzmann method. The pure pitch and pure heave motion of PMM experiment were conducted in CFD software Xflow and corresponding resistance and resistance moment were measured. The Wall-Adapting Local Eddy (WALE) viscosity model was employed to stabilize the simulation. In order to obtain the corresponding hydrodynamic coefficients, Response spectrum analysis was performed on the results derived from CFD simulation. The complex work of meshing is avoided and the workload of numerical simulation is significantly reduced.
- Published
- 2019
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