Gen-0 BWR Modeling Application and Validation (L3 Milestone THM.P18.01)

Technical Report · Sat Dec 01 04:00:00 EST 2018

DOI:https://doi.org/10.2172/1968403· OSTI ID:1968403

Yoon, Su Jong ^[1]; Baglietto, Emilio ^[2]

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1. Idaho National Laboratory (INL), Idaho Falls, ID (United States)
2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Chemical Engineering

This milestone report describes the Consortium for Advanced Simulation of Light Water Reactors (CASL) work conducted for completion of the thermal hydraulics Methods (THM) Level 3 milestone L3:THM.P18.01 Gen-0 BWR Modeling Application and Validation. The extension of existing boiling closure designed for Pressurized Water Reactors (PWRs) to the high void fraction condition of Boiling Water Reactors (BWRs) is one of the challenges for Multiphase Computational Fluid Dynamics (M-CFD) applications. In the efforts aimed at developing the advanced boiling closure for BWRs, the baseline closure model, so-called ‘Zero’ closure, has been developed by leveraging the experience gained through the Numerical Nuclear Reactor project. This baseline closure model is physics-based, simplest and robust, but it does not contain any explicit descriptions of the complex high void fraction mechanisms. This is a continuation of the CASL thermal-hydraulic study to develop and assess the CFD-BWR models. In FY-17, the applicability has been evaluated against the international OECD/NRC BFBT benchmark data. In the present work, we assessed the capability of CFD-BWR model for void drift phenomena in the modern BWR fuel designs which make use of both full-length and part-length rods.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC07-05ID14517; AC05-00OR22725
• OSTI ID: 1968403
• Report Number(s): INL/EXT--18-51009-Rev000
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
42 ENGINEERING
97 MATHEMATICS AND COMPUTING
Boiling Closure Model
Boiling Water Reactor
Computational Fluid Dynamics
Multi-phase flow
Void Drift
Westinghouse FRIGG benchmark