Abstract
We present in this paper a review of some recent works dedicated to the numerical interfacial coupling of fluid models. One main motivation of the whole approach is to provide some meaningful methods and tools in order to compute unsteady patterns, while using distinct existing CFD codes in the nuclear industry. Thus, the main objective is to derive suitable boundary conditions for the codes to be coupled. A first section is devoted to a review of some attempts to couple: (i) 1D and 3D codes, (ii) distinct homogeneous two-phase flow models, (iii) fluid and porous models. More details on numerical procedures described in this section can be found in companion papers. Then we detail in a second section a way to couple a two-fluid hyperbolic model and an homogeneous relaxation model.
Highlights
We present in this paper a review of recent investigations carried on within the framework of the NEPTUNE project ([21])
These aim at improving the interfacial coupling of distinct existing CFD codes, for industrial purposes, focusing on unsteady situations
Since most of the codes involved in this project provide approximations of two-phase flow models, special emphasis is given on this class of models
Summary
We present in this paper a review of recent investigations carried on within the framework of the NEPTUNE project ([21]). The main problem here is to prescribe suitable boundary conditions on both sides of the coupling interface, in order to perform unsteady computations. These experiments have been achieved assuming in each case that a -prescribed- father model governs evolutions of the fluid around the coupling interface.
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