Development of a Mesh Handling System for the SPACE pilot code

The SPACE pilot code, which is under development as a hydraulic solver of nuclear power plant system, is required to handle a variety of complicated geometry encountered in reactor systems. The mesh systems can be divided into two types; structured mesh system and unstructured mesh system. The structured mesh system is simple to apply but is less flexible than the other. The unstructured mesh system is more complicated than the structured mesh system. But it is more flexible to model complex geometries. Therefore, both of the two types of mesh systems are utilized in SPACE to allow code users simplicity as well as flexibility. In this paper, the geometrical approach used in SPACE, and the C++ class design of mesh handlers are briefly introduced