KES - Kite Energy Scheme

KES - 风筝能源计划

• 批准号: EP/P510312/1
• 负责人: John Graham
• 金额: $ 12.62万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FP510312%2F1
• 关键词: KES; Kite; Energy; Scheme

Accurate knowledge of the aerodynamic forces, particularly drag and the limits of the lift coefficient for stable operation are essential for the design of an efficient kite energy system. The system in the present project also involves autonomous manoeuvring of the kite and therefore knowledge of control derivatives is very important. Lift, pitch and roll moments induced by small changes in camber at the trailing edge, and downward curvature at the tips (anhedral) will therefore be studied. Because of the importance of drag, effort will also be directed to the minimisation of the parasitic drag of the bridle lines. The Imperial College contribution to the project will measure the above listed aerodynamic forces under controlled wind tunnel conditions at reduced scale. The results will be compared with field testing experience obtained in another section of the project and then used as inputs to the analysis tool which predicts the operational characteristics of the kite energy system. The second contribution from Imperial College will be to extend and validate the modelling of the kite aerodynamics under orbiting and manoeuvring conditions, in particular developing the wake modelling to achieve greater accuracy and understanding of the issues raised by running two kites with operational overlap in the system, and to consider effects of mean wind shear and turbulence.

对空气动力的准确知识，尤其是阻力和稳定运行的升力系数的限制，对于设计有效的风筝能系统至关重要。本项目中的系统还涉及风筝的自治操作，因此对控制衍生物的了解非常重要。因此，将研究凸轮在后端的倾斜度小小变化以及在尖端（Anhedral）下向下曲率引起的升力，俯仰和滚动矩。由于阻力的重要性，努力也将针对bridle线的寄生阻力的最小化。帝国学院对该项目的贡献将在降低的尺度下衡量上述列出的空气动力。结果将与项目的另一部分中获得的现场测试经验进行比较，然后用作预测风筝能系统运营特征的分析工具的输入。帝国学院的第二个贡献是在轨道和机动条件下扩展和验证风筝空气动力学的建模，尤其是开发尾流建模，以实现通过在系统中运行两个具有操作性重叠的风筝的问题，并考虑平均风剪和涡轮的影响。