论文标题
船体储层波能设备的计算流体动态模拟
Computational fluid dynamic simulation of hull reservoir wave energy device
论文作者
论文摘要
本文介绍了称为船体储层波能转化器（HRWEC）的波能设备的计算流体动力学（CFD）分析。该设备由浮动船体和连接到动力起飞系统（PTO）的襟翼组成，该系统是船体结构不可或缺的。由于其能够通过船体内部水运动引起的船体的俯仰运动和旋转皮瓣的旋转运动来转换波能量，因此它是独一无二的。由于内部流体动力学的复杂性，基于CFD的分析被认为是最合适的。通过使用ANSYS-AQWA和ANSYS FLAENT，在常规波条件下进行了对设备动力学的CFD研究。从模拟的结果获得了相对的螺距角变化，确定功率提取程度的流体动力系数。设计了一个模拟，展示了完整的系统动力学，以在内部水高度上有所不同。观察到了出色的收敛，并确定了最佳构型。预计将在可预见的将来通过实验来验证仿真结果。
This paper presents a Computational Fluid Dynamics (CFD) analysis of a wave energy device called the Hull Reservoir Wave Energy Converter (HRWEC). The device consists of a floating hull and a flap connected to the shaft of power take-off system (PTO), which is integral to the hull structure. It is unique due to its ability to convert wave energy by utilizing the pitch motion of the hull and rotating flap due to the internal water movement in the hull. Due to the complexity of the internal fluid dynamics, a CFD-based analysis was considered most appropriate. The CFD investigation of the dynamics of the device was done under regular wave conditions by using the ANSYS-AQWA and ANSYS FLUENT. Relative pitch angle variation, the hydrodynamic coefficients, which determine the degree of power extraction, were obtained from simulated results. A simulation was designed exhibiting complete system dynamics for different configurations varying on internal water height. Excellent convergence was observed,and an optimum configuration was identified. It is expected to validate the simulation results through experiments in the foreseeable future.
