Physics and macro control of particle circulation in a multi hierarchical complex-open system
9 , 2015-09 , 九州大学応用力学研究所
Fusion reactor research and development via a half-century has progressed to a validation of engineering and physics of nuclear burning as a source of energy generation through the construction of ITER. Although "steady state operation (SSO)" is an indispensable prerequisite for a reactor, the immediate goal of ITER is 400 seconds. In SSO the circulation control of the fuel particles will be the subject of challenging studies due to plasma wall interaction, though it is not a problem in pulsed operation. The present study is aimed at clarifying the particle circulation in three systems, core, boundary, and first wall. Elementary processes, the system interaction, a circulation model, and control of the particle circulation, are subjects to build the foundation for SSO. For this study the viewpoint of "Physics and macro control of particle circulation in a multi hierarchical complex-open system" is introduced. The elucidation of the circulation in each system and the mutual interference leads to the key macro control of the whole system.