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Title: A Well-Posed Two Phase Flow Model and its Numerical Solutions for Reactor Thermal-Fluids Analysis

A 7-equation two-phase flow model and its numerical implementation is presented for reactor thermal-fluids applications. The equation system is well-posed and treats both phases as compressible flows. The numerical discretization of the equation system is based on the finite element formalism. The numerical algorithm is implemented in the next generation RELAP-7 code (Idaho National Laboratory (INL)’s thermal-fluids code) built on top of an other INL’s product, the massively parallel multi-implicit multi-physics object oriented code environment (MOOSE). Some preliminary thermal-fluids computations are presented.
Authors:
 [1] ;  [1] ;  [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
OSTI Identifier:
1313939
Report Number(s):
INL/EXT--16-39603
TRN: US1601829
DOE Contract Number:
AC-07-05-ID14517
Resource Type:
Technical Report
Research Org:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; MATHEMATICAL MODELS; COMPUTERIZED SIMULATION; R CODES; FINITE ELEMENT METHOD; FLOW MODELS; TWO-PHASE FLOW; COMPRESSIBLE FLOW; THERMAL HYDRAULICS; REACTORS; ALGORITHMS; IMPLEMENTATION 7-Equation Model; Reactor Thermal-Fluids; RELAP-7; MOOSE.