Coupling of COBAYA3/SUBCHANFLOW inside the NURESIM platform and validation using selected benchmarks

M. Calleja; V. Sanchez; J. Jimenez; U. Imke; R. Stieglitz; R. Macián

doi:10.1016/j.anucene.2014.03.036

Coupling of COBAYA3/SUBCHANFLOW inside the NURESIM platform and validation using selected benchmarks

M. Calleja, V. Sanchez, J. Jimenez, U. Imke, R. Stieglitz, R. Macián

Chair of Nuclear Technology

Kernforschungszentrum Karlsruhe

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Current generation of codes applied to Light Water Reactors (LWR) are based on 3D neutronic nodal methods coupled with one or two phase flow thermal-hydraulic system or subchannel codes. Multi-scale and multi-physics problems reveal significant challenges while dealing with coupled neutronic/thermal-hydraulic solutions. In addition, spatial meshing and temporal schemes are crucial for the proper description of the non-symmetrical core behavior in case of plant transient e.g. Main Steam Line Break (MSLB). This paper describes the coupling approach between the 3D neutron diffusion code COBAYA3 and the sub-channel code SUBCHANFLOW within the NURESIM platform making use of the unique functionalities for code coupling e.g. the automatic mesh superposition of the involved domains. The details of the implemented coupling schemes for steady-state and transient simulations are introduced. The main results of the validation of COBAYA3/SUBCHANFLOW based on the TMI-1 MSLB and the Kalinin-3 Cooling Transient benchmark are also presented. Finally, a discussion of the prediction capability of COBAYA3/SUBCHANFLOW based on the analysis of different benchmarks is provided.

Original language	English
Pages (from-to)	145-158
Number of pages	14
Journal	Annals of Nuclear Energy
Volume	71
DOIs	https://doi.org/10.1016/j.anucene.2014.03.036
State	Published - Sep 2014

Keywords

Coupling of core neutronics with subchannel thermal hydraulics
NURESIM simulation platform
Validation of coupled codes

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10.1016/j.anucene.2014.03.036

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@article{a3f68607328344e0bbb3e45a53f86a5d,

title = "Coupling of COBAYA3/SUBCHANFLOW inside the NURESIM platform and validation using selected benchmarks",

abstract = "Current generation of codes applied to Light Water Reactors (LWR) are based on 3D neutronic nodal methods coupled with one or two phase flow thermal-hydraulic system or subchannel codes. Multi-scale and multi-physics problems reveal significant challenges while dealing with coupled neutronic/thermal-hydraulic solutions. In addition, spatial meshing and temporal schemes are crucial for the proper description of the non-symmetrical core behavior in case of plant transient e.g. Main Steam Line Break (MSLB). This paper describes the coupling approach between the 3D neutron diffusion code COBAYA3 and the sub-channel code SUBCHANFLOW within the NURESIM platform making use of the unique functionalities for code coupling e.g. the automatic mesh superposition of the involved domains. The details of the implemented coupling schemes for steady-state and transient simulations are introduced. The main results of the validation of COBAYA3/SUBCHANFLOW based on the TMI-1 MSLB and the Kalinin-3 Cooling Transient benchmark are also presented. Finally, a discussion of the prediction capability of COBAYA3/SUBCHANFLOW based on the analysis of different benchmarks is provided.",

keywords = "Coupling of core neutronics with subchannel thermal hydraulics, NURESIM simulation platform, Validation of coupled codes",

author = "M. Calleja and V. Sanchez and J. Jimenez and U. Imke and R. Stieglitz and R. Maci{\'a}n",

note = "Funding Information: The authors wish to acknowledge the valuable opportunity given by the NURISP project to get familiar with NURESIM platform and with the SALOME software as well as for very fruitful discussions. The first author would like to thank EnBW for the financial support provided for the development of this work and also the benchmark teams of the he Kalinin-3 and TMI1-MSLB benchmarks for the valuable data provided for the validation of coupled codes. The authors acknowledge the support for the Polytechnic University of Madrid (UPM) in the use of the CBY3 code. Finally, the first author thanks to the Institute of Neutron Physics and Reactor Technology (INR) of the Karlsruhe Institute of Technology (KIT) for providing a good environment and facilities for research.",

year = "2014",

month = sep,

doi = "10.1016/j.anucene.2014.03.036",

language = "English",

volume = "71",

pages = "145--158",

journal = "Annals of Nuclear Energy",

issn = "0306-4549",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Coupling of COBAYA3/SUBCHANFLOW inside the NURESIM platform and validation using selected benchmarks

AU - Calleja, M.

AU - Sanchez, V.

AU - Jimenez, J.

AU - Imke, U.

AU - Stieglitz, R.

AU - Macián, R.

N1 - Funding Information: The authors wish to acknowledge the valuable opportunity given by the NURISP project to get familiar with NURESIM platform and with the SALOME software as well as for very fruitful discussions. The first author would like to thank EnBW for the financial support provided for the development of this work and also the benchmark teams of the he Kalinin-3 and TMI1-MSLB benchmarks for the valuable data provided for the validation of coupled codes. The authors acknowledge the support for the Polytechnic University of Madrid (UPM) in the use of the CBY3 code. Finally, the first author thanks to the Institute of Neutron Physics and Reactor Technology (INR) of the Karlsruhe Institute of Technology (KIT) for providing a good environment and facilities for research.

PY - 2014/9

Y1 - 2014/9

N2 - Current generation of codes applied to Light Water Reactors (LWR) are based on 3D neutronic nodal methods coupled with one or two phase flow thermal-hydraulic system or subchannel codes. Multi-scale and multi-physics problems reveal significant challenges while dealing with coupled neutronic/thermal-hydraulic solutions. In addition, spatial meshing and temporal schemes are crucial for the proper description of the non-symmetrical core behavior in case of plant transient e.g. Main Steam Line Break (MSLB). This paper describes the coupling approach between the 3D neutron diffusion code COBAYA3 and the sub-channel code SUBCHANFLOW within the NURESIM platform making use of the unique functionalities for code coupling e.g. the automatic mesh superposition of the involved domains. The details of the implemented coupling schemes for steady-state and transient simulations are introduced. The main results of the validation of COBAYA3/SUBCHANFLOW based on the TMI-1 MSLB and the Kalinin-3 Cooling Transient benchmark are also presented. Finally, a discussion of the prediction capability of COBAYA3/SUBCHANFLOW based on the analysis of different benchmarks is provided.

AB - Current generation of codes applied to Light Water Reactors (LWR) are based on 3D neutronic nodal methods coupled with one or two phase flow thermal-hydraulic system or subchannel codes. Multi-scale and multi-physics problems reveal significant challenges while dealing with coupled neutronic/thermal-hydraulic solutions. In addition, spatial meshing and temporal schemes are crucial for the proper description of the non-symmetrical core behavior in case of plant transient e.g. Main Steam Line Break (MSLB). This paper describes the coupling approach between the 3D neutron diffusion code COBAYA3 and the sub-channel code SUBCHANFLOW within the NURESIM platform making use of the unique functionalities for code coupling e.g. the automatic mesh superposition of the involved domains. The details of the implemented coupling schemes for steady-state and transient simulations are introduced. The main results of the validation of COBAYA3/SUBCHANFLOW based on the TMI-1 MSLB and the Kalinin-3 Cooling Transient benchmark are also presented. Finally, a discussion of the prediction capability of COBAYA3/SUBCHANFLOW based on the analysis of different benchmarks is provided.

KW - Coupling of core neutronics with subchannel thermal hydraulics

KW - NURESIM simulation platform

KW - Validation of coupled codes

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U2 - 10.1016/j.anucene.2014.03.036

DO - 10.1016/j.anucene.2014.03.036

M3 - Article

AN - SCOPUS:84899428536

SN - 0306-4549

VL - 71

SP - 145

EP - 158

JO - Annals of Nuclear Energy

JF - Annals of Nuclear Energy

ER -

Coupling of COBAYA3/SUBCHANFLOW inside the NURESIM platform and validation using selected benchmarks

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Keywords

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