Preliminary design and verification of divertor module for CFETR system code

An integrated simulation and optimization system code is being developed for China Fusion Engineering Test Reactor (CFETR). The main function of the CFETR system code is to achieve consistent physical objectives with achievable engineering parameters. As one of the most important works in a tokamak R&D, the design of divertor must consider many aspects, such as high heat loads removal, particles pumping, electromagnetic forces sustaining, remote handling compatibility, etc. However, it is difficult to ensure all parameters are optimum due to some divertor parameters may be conflict or highly interdependent. An underdeveloped divertor module code may address these issues. The purposes of developing this module code are to explore key elements of divertor system, simplify design process and determine main engineering parameters by iteration of a self-consistent workflow. The divertor module code incorporates submodules with input, output, material and criterion database, simulation and optimization CAE tool-box including CATIA, ANSYS and OPTIMUS. This paper also presents some simulation work to verify this workflow.