Towards an efficient multiphysics model for nuclear reactor dynamics
| العنوان: | Towards an efficient multiphysics model for nuclear reactor dynamics |
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| المؤلفون: | Avinash J. Gaikwad, K. Obaidurrahman |
| المصدر: | Nuclear Technology and Radiation Protection, Vol 30, Iss 3, Pp 165-174 (2015) |
| بيانات النشر: | VINCA Institute of Nuclear Sciences, 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | core thermal hydraulics, Neutron transport, Computer science, Multiphysics, Nuclear engineering, space-time kinetics, Nuclear reactor, law.invention, Thermal hydraulics, Nuclear Energy and Engineering, Nuclear reactor core, law, Heat transfer, coupled core dynamics, lcsh:QC770-798, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Transient (oscillation), TRIKIN, Core model, Safety, Risk, Reliability and Quality, power weighted coupling, multiphysics modeling |
| الوصف: | Availability of fast computer resources nowadays has facilitated more in-depth modeling of complex engineering systems which involve strong multiphysics interactions. This multiphysics modeling is an important necessity in nuclear reactor safety studies where efforts are being made worldwide to combine the knowledge from all associated disciplines at one place to accomplish the most realistic simulation of involved phenomenon. On these lines coupled modeling of nuclear reactor neutron kinetics, fuel heat transfer and coolant transport is a regular practice nowadays for transient analysis of reactor core. However optimization between modeling accuracy and computational economy has always been a challenging task to ensure the adequate degree of reliability in such extensive numerical exercises. Complex reactor core modeling involves estimation of evolving 3-D core thermal state, which in turn demands an expensive multichannel based detailed core thermal hydraulics model. A novel approach of power weighted coupling between core neutronics and thermal hydraulics presented in this work aims to reduce the bulk of core thermal calculations in core dynamics modeling to a significant extent without compromising accuracy of computation. Coupled core model has been validated against a series of international benchmarks. Accuracy and computational efficiency of the proposed multiphysics model has been demonstrated by analyzing a reactivity initiated transient. |
| اللغة: | English |
| تدمد: | 1452-8185 1451-3994 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a80603a1f2fd52699522ad16d9307aac http://www.doiserbia.nb.rs/img/doi/1451-3994/2015/1451-39941503165O.pdf |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....a80603a1f2fd52699522ad16d9307aac |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14528185 14513994 |
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