Single-Phase multi-dimensional thermohydrauliC analysis code AQUA; Input Manual

not registered; Ninokata, Hisashi

A single-phase multi-dimensional thermohydraulic analysis code AQUA has been developed to establish an analytical tool for the thermohydraulics in a reactor and the other main components of an LMFBR. AQUA is based on the reconstruction of COMMIX-IA, introduced from ANL in l983, which ranges from the improvements of numerics to the implementation of new functions. Main features of AQUA different from COMMIX-1A are as follows: (1)Original Model Version (version-1) (a)QUICK and QUICK-FRAM schemes as the discretization methods of the convection terms of transport equations (b)ICCG method as a Poisson-type matrix solver (c)k- two equation turbulence model (2)Mass Transport Model Version(version-2) (a)including the features of version-1 (b)transport evaluation of an arbitrary mass fragment (3)Multi Regions Model Version(version-3) (a)including the features of version-1 (b)coupled evaluation in multi-region multi-dimensional system