High-fidelity multi-physics coupling for determination of hydride distribution in Zr-4 cladding

Davis, Ian James; Courty, Olivier; Avramova, Maria; Motta, Arthur T.

doi:10.1016/j.anucene.2017.06.049

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…Without household metering and charging, residents cannot regulate the heating and control the costs according to their needs, resulting in their weak energy-saving awareness. Moreover, once they leave the buildings, or they feel uncomfortable with the indoor temperature, residents cannot adjust the heating valves, thereby leading to severe energy waste [7,8].…”

Section: Methodsmentioning

confidence: 99%

Numerical simulation of ultrasonic heat meter by multiphysics coupling finite-element simulation software

Zheng

2020

THERM SCI

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Objective: To increase heat calculation accuracy, the numerical simulation of the ultrasonic heat meter is explored by multiphysics coupling. Methods: The COMSOL, a multiphysics coupling finite-element simulation software, is used to build the coupling model of the sound field, structure field, and electric field. The propagation of ultrasonic waves in heat meters is simulated, and its sound field distribution in pure water is analyzed. According to the operating conditions of ultrasonic heat meters, the influence of impurities with different concentrations on ultrasonic propagation is analyzed. The end-face sound pressure levels of the incident transducer and the receiving transducer are compared to obtain the attenuation laws of ultrasonic waves in the liquid-solid two-phase flow. Results: The main lobe and multiple side lobes exist during the propagation of ultrasonic waves. The energy of the main lobe is higher than that of the side lobes. Bubbles resonate under the action of the sound field. Also, bubbles of different diameters correspond to different resonance frequencies, which have larger sound pressure than that of the incident sound field. Most of the sound waves are reflected at the liquid-solid interface, while some of them continue to propagate through the media, affecting the sound pressure distribution on the end-face of the receiving transducer, thereby affecting the measurement accuracy of the ultrasonic heat meter. Conclusion: The reliability and detection efficiency of the heat meter is improved, which is significant and theoretically valuable.

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Section: Methodsmentioning

confidence: 99%

Numerical simulation of ultrasonic heat meter by multiphysics coupling finite-element simulation software

Zheng

2020

THERM SCI

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“…There are 16 non-uniform heated rods and 25 subchannels. All general specifications can be found in Table 3 adjusted from [46]. We have 36 axial cells in subchannel, 1000 layers in the averaged objects and 100 axial cells in the cladding and fuel pellet in the BISON model.…”

Section: × 4 Sub-assembly Coupling Examplementioning

confidence: 99%

Development of a Single-Phase, Transient, Subchannel Code, within the MOOSE Multi-Physics Computational Framework

2022

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Subchannel codes have been widely used for thermal-hydraulics analyses in nuclear reactors. This paper details the development of a novel subchannel code within the Idaho National Laboratory’s (INL) Multi-physics Object Oriented Simulation Environment (MOOSE). MOOSE is a parallel computational framework targeted at the solution of systems of coupled, nonlinear partial differential equations, that often arise in the simulation of nuclear processes. As such, it includes codes/modules able to solve the multiple linear and nonlinear physics that describe a nuclear reactor, under normal operation conditions or accidents. This includes thermal-hydraulics, fuel performance, and neutronics codes, between others. A MOOSE-based subchannel code is a new addition to the fleet of INL-developed codes, based on the MOOSE framework. In this work, we present the derivation of the subchannel equations for a single-phase fluid, we proceed with the description of the algorithm that is used to solve these equations and describe how this algorithm was implemented within MOOSE. We also present how this code can be coupled to the BISON fuel performance code. Next, we verify the friction model and the turbulent mixing model. We calibrate the turbulent modeling parameters for momentum mixing and enthalpy mixing, CT,β. We validate the code using experimental results and last demonstrate the coupling capabilities using a simple example.

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Neutronics/thermal-hydraulics/fuel-performance coupling for light water reactors and its application to accident tolerant fuel

Liu

et al. 2022

Annals of Nuclear Energy

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High-fidelity multi-physics coupling for determination of hydride distribution in Zr-4 cladding

Cited by 5 publications

References 10 publications

Numerical simulation of ultrasonic heat meter by multiphysics coupling finite-element simulation software

Numerical simulation of ultrasonic heat meter by multiphysics coupling finite-element simulation software

Development of a Single-Phase, Transient, Subchannel Code, within the MOOSE Multi-Physics Computational Framework

Neutronics/thermal-hydraulics/fuel-performance coupling for light water reactors and its application to accident tolerant fuel

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