高功率、连续波稳态运行离子回旋加热天线关键科学问题研究

本项目旨在解决ICRF加热天线在高功率，连续波稳态运行时所必须解决的关键问题。通过开展天线几何结构和保护板电连接模式对RF鞘层形成机理研究，获得可以控制或减小射频鞘对天线和等离子体性能不利影响的有效途径。清楚理解复杂的边界与天线的相互作用行为，探析在天线附近存在对流、辐射、扩散和平行输运损失，局部热斑形成的情况下天线部件上热流沉积规律，研究探索出一种新的换热强化理论，解决换热强化技术在ICRF天线高热流承载部件上应用问题。总结上述研究内容并从理论上加以论述，形成一套切实可行的科学计算方法和工程设计指导理论，为EAST装置和ITER装置及DEMON 高功率，连续波稳态运行ICRF天线建设奠定理论基础和提供技术储备。

The aim for this project research is to urgently solve the key points for ICRF antenna under high power, continous-wave and stable-state operation. Research will be performed for the mechanism of RF sheath coming into being by varying the structural parameters of ICRF antenna and bumper electrical connection mode, which help to obtain the effective methods to control or lower the affection of ICRF antenna coupling and plasma performance from RF sheath. As deeply understanding the behavior between the complex plasma edge and ICRF antenna so as to analyze the heat load distribution behavior on the ICRF antenna due to convection, radiation, diffusion and transportation loss at the vicinity of antenna as well as hot spot forming on the ICRF antenna components. Base on the results of analysis and research a new theory of augmented heat exchanger, they will help to successfully apply a new augmented heat exchanger technology in the ICRF antenna components with high heat loads。Summarizing the research results into one practical, effective and science simulation method and guide theory for engineer design, they will provide theory and technology guide for the construction of ICRF antenna with the capacity of high power, continous wave and stable-state operation on the EAST and ITER device as well as DEMON device.