Pub Date : 2024-04-22DOI: 10.1080/00295639.2024.2332021
S. V. Bogovalov, I. V. Tronin, A. V. Vasilyev
In this paper, numerical simulation methods are used to study issues related to the optimal operating modes of hyperspeed (rotor velocity 1000 m/s and above) model gas centrifuges (GCs) of various ...
本文采用数值模拟方法，研究了与各种型号气体离心机（GCs）的超高速（转子速度 1000 m/s 及以上）最佳运行模式有关的问题。
{"title":"On the Possibility of Achieving Optimal Operating Modes of Hyperspeed Model Gas Centrifuges: 3D Numerical Simulation","authors":"S. V. Bogovalov, I. V. Tronin, A. V. Vasilyev","doi":"10.1080/00295639.2024.2332021","DOIUrl":"https://doi.org/10.1080/00295639.2024.2332021","url":null,"abstract":"In this paper, numerical simulation methods are used to study issues related to the optimal operating modes of hyperspeed (rotor velocity 1000 m/s and above) model gas centrifuges (GCs) of various ...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140637241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-22DOI: 10.1080/00295639.2024.2328944
Maximiliano Dalinger, William Walters
Monte Carlo codes are the most accurate way to solve the neutronics in a reactor core but can be computationally expensive, especially for when feedback effects are considered or for transient calc...
Monte Carlo 代码是求解反应堆堆芯中子学问题的最精确方法，但计算成本很高，特别是在考虑反馈效应或进行瞬态计算时。
{"title":"Analysis of Fission Matrix Databases with Nonuniform Fuel Temperature Profiles for Static and Transient Calculations","authors":"Maximiliano Dalinger, William Walters","doi":"10.1080/00295639.2024.2328944","DOIUrl":"https://doi.org/10.1080/00295639.2024.2328944","url":null,"abstract":"Monte Carlo codes are the most accurate way to solve the neutronics in a reactor core but can be computationally expensive, especially for when feedback effects are considered or for transient calc...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140637242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-17DOI: 10.1080/00295639.2024.2332009
G. Giudicelli, R. Crowder, L. Harbour, D. Gaston
MaCaw is a Multiphysics Object-Oriented Simulation Environment (MOOSE)–based application that enables domain-decomposed neutral particle transport calculations in MOOSE. It leverages MOOSE’s ray-tr...
{"title":"MaCaw: Domain-Decomposed Monte Carlo Neutral Particle Transport on Unstructured Mesh in MOOSE","authors":"G. Giudicelli, R. Crowder, L. Harbour, D. Gaston","doi":"10.1080/00295639.2024.2332009","DOIUrl":"https://doi.org/10.1080/00295639.2024.2332009","url":null,"abstract":"MaCaw is a Multiphysics Object-Oriented Simulation Environment (MOOSE)–based application that enables domain-decomposed neutral particle transport calculations in MOOSE. It leverages MOOSE’s ray-tr...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140610704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-15DOI: 10.1080/00295639.2024.2332001
Arne Cröll, Jamelle K. P. Williams, Brian Taylor, Martin P. Volz, Christopher McKinney, Timothy Coons, Jhonathan Rosales
Ceramic uranium mononitride (UN) is being considered as a reactor fuel for nuclear thermal propulsion. To avoid or reduce the dissociation of UN at the high temperatures needed, embedding it in a m...
人们正在考虑将陶瓷单氮化铀（UN）作为核热推进反应堆燃料。为了避免或减少 UN 在所需的高温下发生解离，将其嵌入陶瓷材料中是一种有效的方法。
{"title":"Hot Hydrogen Testing of W-Coated UN Kernels in a Mo30W Matrix","authors":"Arne Cröll, Jamelle K. P. Williams, Brian Taylor, Martin P. Volz, Christopher McKinney, Timothy Coons, Jhonathan Rosales","doi":"10.1080/00295639.2024.2332001","DOIUrl":"https://doi.org/10.1080/00295639.2024.2332001","url":null,"abstract":"Ceramic uranium mononitride (UN) is being considered as a reactor fuel for nuclear thermal propulsion. To avoid or reduce the dissociation of UN at the high temperatures needed, embedding it in a m...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140590995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-15DOI: 10.1080/00295639.2024.2329838
Antonio Galia
A method of dynamic homogenization was recently proposed as an alternative technique for three-dimensional (3D) core calculations using a direct approach. This technique allows for producing homoge...
{"title":"A Multilevel Approach for Direct Core Calculation Schemes","authors":"Antonio Galia","doi":"10.1080/00295639.2024.2329838","DOIUrl":"https://doi.org/10.1080/00295639.2024.2329838","url":null,"abstract":"A method of dynamic homogenization was recently proposed as an alternative technique for three-dimensional (3D) core calculations using a direct approach. This technique allows for producing homoge...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-12DOI: 10.1080/00295639.2024.2310391
Boran Kong, Longfei Xu, Baiwen Li
The convergence behavior of a two-dimensional (2D) transport method has been derived by Fourier analysis for single-group problems with isotropic sources. However, in real calculation, to pursue pr...
{"title":"Convergence Study of 2D Transport Method for Multigroup k-Eigenvalue Problems with High-Order Scattering Source Using Fourier Analysis","authors":"Boran Kong, Longfei Xu, Baiwen Li","doi":"10.1080/00295639.2024.2310391","DOIUrl":"https://doi.org/10.1080/00295639.2024.2310391","url":null,"abstract":"The convergence behavior of a two-dimensional (2D) transport method has been derived by Fourier analysis for single-group problems with isotropic sources. However, in real calculation, to pursue pr...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-12DOI: 10.1080/00295639.2024.2331906
Santiago Bazzana, Juan I. Beliera, Dumitru Serghiuta, Alexandre Trottier
Comparison of results for global responses predicted by different multiphysics simulations of benchmark problems may fail to reveal potentially significant local modeling issues. An examination of ...
比较基准问题的不同多物理场模拟所预测的全局响应结果可能无法揭示潜在的重大局部建模问题。对...
{"title":"Comparing Coupled Multiphysics Simulations of Pump-Driven Transients for a Pressurized Heavy Water Reactor","authors":"Santiago Bazzana, Juan I. Beliera, Dumitru Serghiuta, Alexandre Trottier","doi":"10.1080/00295639.2024.2331906","DOIUrl":"https://doi.org/10.1080/00295639.2024.2331906","url":null,"abstract":"Comparison of results for global responses predicted by different multiphysics simulations of benchmark problems may fail to reveal potentially significant local modeling issues. An examination of ...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1080/00295639.2024.2323866
Sharbrenai Anise Holyk, Robert B. Hayes
Although reducing conservatism would alleviate unnecessary constraints in processing, storage, transportation, and disposal of nuclear materials, excessively conservative approaches are still utili...
尽管减少保守主义会减轻核材料在加工、储存、运输和处置过程中不必要的限制，但过度保守的方法仍然有用。
{"title":"Demonstrating a Quantitative and Systematic Approach to Reducing Excess Conservativism in Nuclear Criticality Safety Analyses","authors":"Sharbrenai Anise Holyk, Robert B. Hayes","doi":"10.1080/00295639.2024.2323866","DOIUrl":"https://doi.org/10.1080/00295639.2024.2323866","url":null,"abstract":"Although reducing conservatism would alleviate unnecessary constraints in processing, storage, transportation, and disposal of nuclear materials, excessively conservative approaches are still utili...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As part of the verification, validation, and uncertainty quantification process applied to neutronics deterministic codes, there is a requirement to expand the validation domain, especially to acco...
{"title":"Predicting Model Biases of the APOLLO3 Neutronics Code Using Machine Learning: Toward a Multiscale and Multifidelity Approach","authors":"Claire Terrazzoni, Laurent Buiron, Jean-Marc Palau","doi":"10.1080/00295639.2024.2329837","DOIUrl":"https://doi.org/10.1080/00295639.2024.2329837","url":null,"abstract":"As part of the verification, validation, and uncertainty quantification process applied to neutronics deterministic codes, there is a requirement to expand the validation domain, especially to acco...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-04DOI: 10.1080/00295639.2024.2324532
Chen Dubi, Anil K. Prinja
Modeling and simulation of stochastic fission chains, often referred to as zero power reactor noise or stochastic transport, is a central topic in nuclear science and engineering, with important pr...
{"title":"A Diffusion Scale Approximation for Stochastic Fission Chains with State Feedback","authors":"Chen Dubi, Anil K. Prinja","doi":"10.1080/00295639.2024.2324532","DOIUrl":"https://doi.org/10.1080/00295639.2024.2324532","url":null,"abstract":"Modeling and simulation of stochastic fission chains, often referred to as zero power reactor noise or stochastic transport, is a central topic in nuclear science and engineering, with important pr...","PeriodicalId":19436,"journal":{"name":"Nuclear Science and Engineering","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140591150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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