Development and validation of two-phase flow models and critical heat flux prediction for the highly-scalable CFD code NEK-2P

Technical Report · Sat Sep 01 00:00:00 EDT 2018

DOI:https://doi.org/10.2172/1483961· OSTI ID:1483961

Tentner, Adrian ^[1]; Vegendla, Prasad ^[1]; Shaver, Dillon ^[1]; Tomboulides, Ananias ^[1]; Obabko, Aleks ^[1]; Merzari, Elia ^[1]

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1. Argonne National Lab. (ANL), Argonne, IL (United States)

A project is underway to develop, verify and validate an advanced two-phase flow modeling capability for the highly-scalable high-performance CFD code NEK5000[1]. The goal of the project is to develop a new two-phase version of the NEK5000code, named NEK-2P, to simulate the two-phase flow and heat transfer phenomena that occur in a Boiling Water Reactor (BWR) fuel bundle under various operating conditions. The NEK-2P two-phase flow models follow the approach used for the Extended Boiling Framework [2-3] previously developed at Argonne, but include more fundamental physical models of boiling phenomena and advanced numerical algorithms for improved computational accuracy, robustness, and computational speed.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1483961
• Report Number(s): ANL-18/34; 147883
• Country of Publication: United States
• Language: English

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