Numerical Simulation of Water Impact on a Wave Energy Converter in Free Fall Motion

• 作者: Clive Geoffrey Mingham Derek Mark Causon Ling Qian Zheng Zheng Hu
• 来源期刊: 流体动力学(英文)
• 学科: 医学
• 关键词: Wave Energy CONVERTER Manchester Bobber CARTESIAN CUT Cell Free Surface Capturing and Artificial COMPRESSIBILITY Method
• 年，卷（期）: 2013,（2）
• 页码范围: 109-115
• 页数: 7页
• 分类号: R73

摘要

Results are presented for the 3D numerical simulation of the water impact of a wave energy converter in free fall and subsequent heave motion. The solver, AMAZON-3D, employs a Riemann-based finite volume method on a Cartesian cut cell mesh. The computational domain includes both air and water regions with the air/water boundary captured automatically as a discontinuity in the density field thereby admitting break up and recombination of the free surface. Temporal discretisation uses the artificial compressibility method and a dual time stepping strategy. Cartesian cut cells are used to provide a boundary-fitted grid at all times. The code is validated by experimental data including the free fall of a cone and free decay of a single Manchester Bobber component.