Journal of Fusion Energy最新文献_第8页

A Machine Learning Method for the Optimization Design of Laser Pulse in Fast Ignition Simulations 快速点火模拟中激光脉冲优化设计的机器学习方法

IF 1.9 4区工程技术

Journal of Fusion Energy Pub Date : 2024-03-30 DOI: 10.1007/s10894-024-00400-3

S. Wei, F. Wu, Y. Zhu, J. Yang, L. Zeng, X. Li, J. Zhang

引用次数: 0

FEM Simulation of ITER EC H&CD Diamond Microwave Window Unit during Preparation and Subsequent Service ITER EC H&CD 钻石微波窗口装置准备和后续服务期间的有限元模拟

IF 1.9 4区工程技术

Journal of Fusion Energy Pub Date : 2024-03-21 DOI: 10.1007/s10894-024-00401-2

Lei Wang, Jiahe Zhou, Shuting Li, Chuanyang Lu, Yafei Li, Huaxin Li, Jianguo Yang, Yanming He

引用次数: 0

Application and Validation of an Improved One-to-Many Method to CFETR Neutronics Modeling 改进的一对多方法在 CFETR 中子建模中的应用和验证

IF 1.9 4区工程技术

Journal of Fusion Energy Pub Date : 2024-03-19 DOI: 10.1007/s10894-024-00397-9

Miao Yin, Qixiang Cao, Xiaoyu Wang, Xinghua Wu, Shen Qu

{"title":"Application and Validation of an Improved One-to-Many Method to CFETR Neutronics Modeling","authors":"Miao Yin, Qixiang Cao, Xiaoyu Wang, Xinghua Wu, Shen Qu","doi":"10.1007/s10894-024-00397-9","DOIUrl":"10.1007/s10894-024-00397-9","url":null,"abstract":"<div>China fusion engineering test reactor (CFETR) is a magnetic confinement device which will fill the gap between the fusion experimental reactor and the demonstration reactor. To efficiently conduct neutronics modeling for the multiple identical and similar structures present in CFETR’s modular design, an improved one-to-many method is developed and implemented in this study. This method involves using a basic model in conjunction with a 3D transformed coordinate system. However, the absence of a clear solution method for the transformed coordinate system in MCNP presents a challenge. To address this issue, a solution method based on the axis attributes of the surfaces in MCNP and the composite nature of the 3D transformed coordinate system is developed. The improved one-to-many method has been applied to the neutron modeling of CFETR, and its reliability has been verified. In the neutron calculation model corresponding to the one-to-many and one-to-one methods, relative differences of the total TBR and nuclear heating are 0.25%, 0.07% respectively. The contribution of blanket modules to tritium breeding ratio (TBR) and nuclear heating has a relative difference within the range of − 0.25–0.55%. The relative differences of neutron flux and nuclear heating distribution for individual blanket modules #3–1 and #6–1 are within the range of − 0.60–0.40%. The results indicate that the improved one-to-many method can be employed for neutronics modeling in the preliminary design of CFETR.</div>","PeriodicalId":634,"journal":{"name":"Journal of Fusion Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140172269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Mechanical Performance Analyses of CFETR CSMC Preload Components Under Testing Current CFETR CSMC 预载组件在测试电流下的机械性能分析

IF 1.9 4区工程技术

Journal of Fusion Energy Pub Date : 2024-03-12 DOI: 10.1007/s10894-024-00396-w

Xianwei Wang, Chenyang Li, Haikuo Zhao, Yi Shi, Zhaoliang Wang, Xiulian Li, Xiuxiang Chen

{"title":"The Mechanical Performance Analyses of CFETR CSMC Preload Components Under Testing Current","authors":"Xianwei Wang, Chenyang Li, Haikuo Zhao, Yi Shi, Zhaoliang Wang, Xiulian Li, Xiuxiang Chen","doi":"10.1007/s10894-024-00396-w","DOIUrl":"10.1007/s10894-024-00396-w","url":null,"abstract":"<div>The R&D of Central Solenoid Model Coil is a preparatory stage towards the final fabrication of China Fusion Engineering Test Reactor Central Solenoid. In view of the risk of being tear down or destroyed of the CSMC insulation components and current lead caused by the electromagnetic force, the preload system is designed and mounted around the circumferential direction of the cylindrical coil modules. In order to check the joint resistance, peak magnetic field, AC loss, mechanical performance of preload components under eddy current, CSMC will be tested under several typical current waves. For the sake of safety, a comprehensive mechanical analyses on the preload components need to be carried out before the final commissioning of CSMC. In this paper the magnetic density and eddy current on the preload components are calculated first. Then the electromagnetic force on the preload components under the testing current is analyzed. Finally, the mechanical analysis and stress evaluation are performed. The study presented in the paper will provide reference for the operation of CSMC under the testing current.</div>","PeriodicalId":634,"journal":{"name":"Journal of Fusion Energy","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10894-024-00396-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140125879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: MHD Flow in Simple Cubic Periodic Array Geometry 更正：简单立方周期阵列几何中的多流体力学流动

IF 1.9 4区工程技术

Journal of Fusion Energy Pub Date : 2024-02-23 DOI: 10.1007/s10894-024-00395-x

L. Buligins, I. Bucenieks, I. Grants, I. Kaldre, K. Kravalis, O. Mikanovskis

引用次数: 0

Modeling Study of Divertor Pumping Effect on Detachment and Impurity Retention with Argon Seeding in EAST 掺入氩气的 EAST 中分流器泵送对脱离和杂质滞留影响的模型研究

IF 1.1 4区工程技术

Journal of Fusion Energy Pub Date : 2023-12-18 DOI: 10.1007/s10894-023-00394-4

Tao He, Zhongshi Yang, Kedong Li, Xiaoju Liu, Yaowei Yu, Guozhang Jia, Guojian Niu, Feifei Nian, Rong Wang, Liang Wang, Guang-Nan Luo

{"title":"Modeling Study of Divertor Pumping Effect on Detachment and Impurity Retention with Argon Seeding in EAST","authors":"Tao He, Zhongshi Yang, Kedong Li, Xiaoju Liu, Yaowei Yu, Guozhang Jia, Guojian Niu, Feifei Nian, Rong Wang, Liang Wang, Guang-Nan Luo","doi":"10.1007/s10894-023-00394-4","DOIUrl":"10.1007/s10894-023-00394-4","url":null,"abstract":"<div>The effects of divertor pumping on divertor detachment and core performance are investigated using SOLPS-ITER simulations for the H-mode discharges with argon (Ar) seeding on EAST. The simulation results show that a relatively low pumping speed (S) is advantageous for achieving divertor detachment due to an increased Ar density and enhanced radiative dissipation. On the other hand, a relatively low S results in a high Ar density in the core region, which is detrimental to the core performance. Increasing S improves the particle removal capacity, which is not conducive to obtaining detachment but is conducive to reducing the Ar accumulation in the core region. In order to evaluate the compatibility of detachment and high core plasma performance, the impact of S on the divertor Ar retention (measured by impurity compression CAr and enrichment EAr) and the corresponding physical mechanisms were analyzed. In cases with relatively low and medium upstream density (({n}_{mathrm{e},mathrm{sep}}^{mathrm{OMP}})), a higher S is beneficial to increase CAr and EAr, i.e. better core-divertor compatibility, mainly due to the diminished neutral diffusion towards the upstream and the enhanced net force on the Ar towards the target. At relatively high ({n}_{mathrm{e},mathrm{sep}}^{mathrm{OMP}}), both CAr and EA show no clear change with increasing S. This is because the negative contribution of the reduced relative distance between the Ar ionization front and the velocity stagnation point of the Ar ions to the Ar retention becomes significant with increasing S, which can even offset the positive contribution of the neutral diffusion and the net force.</div>","PeriodicalId":634,"journal":{"name":"Journal of Fusion Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138715544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MHD Flow in Simple Cubic Periodic Array Geometry 简单三次周期阵列几何中的MHD流

IF 1.1 4区工程技术

Journal of Fusion Energy Pub Date : 2023-12-06 DOI: 10.1007/s10894-023-00390-8

L. Buligins, I. Bucenieks, I. Grants, I. Kaldre, K. Kravalis, O. Mikanovskis

{"title":"MHD Flow in Simple Cubic Periodic Array Geometry","authors":"L. Buligins, I. Bucenieks, I. Grants, I. Kaldre, K. Kravalis, O. Mikanovskis","doi":"10.1007/s10894-023-00390-8","DOIUrl":"10.1007/s10894-023-00390-8","url":null,"abstract":"<div>The aim of this study is to investigate the behaviour of liquid metal flow in Capillary Porous System (CPS) under strong external magnetic field. Overlapping simple cubic (SC) periodic array of electrically non-conducting spheres with diameter 6 mm and distance between spheres centres 5.6 mm is 3D printed from PLA electrically non-conducting filament. At room temperature, flow of up to 50 mL/s of In–Ga–Sn in pore space in magnetic field of superconducting magnet up to 5T is investigated. Three orientations of magnetic field in relation to the main flow in SC cell are considered—colinear with main flow and perpendicular to it. The values of Reynolds, Hartmann and Stuart numbers in experiment are up to 1160, 90 and 350, respectively. The results indicate that parallel to the main flow orientation of magnetic field has little influence on the flowrate, while perpendicular orientation strongly reduces flowrate with dependence close to 1/Ha, which agrees well with ANSYS Fluent simulations in a unit SC cell, resembling results for channel flow in magnetic field.</div>","PeriodicalId":634,"journal":{"name":"Journal of Fusion Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10894-023-00390-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138502332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Inclined Gradient Magnetic Field on the Liquid Metal Flow States Through Coupled Conducting Ducts 倾斜梯度磁场对耦合导电管道中液态金属流动状态的影响

IF 1.1 4区工程技术

Journal of Fusion Energy Pub Date : 2023-11-27 DOI: 10.1007/s10894-023-00391-7

Lei Wang, Xiujie Zhang, Zhenchao Sun

{"title":"Effects of Inclined Gradient Magnetic Field on the Liquid Metal Flow States Through Coupled Conducting Ducts","authors":"Lei Wang, Xiujie Zhang, Zhenchao Sun","doi":"10.1007/s10894-023-00391-7","DOIUrl":"10.1007/s10894-023-00391-7","url":null,"abstract":"<div>The liquid metal magnetohydrodynamic (MHD) flow through coupled ducts with conducting walls under inclined transversal gradient magnetic field is an important physical flow phenomenon, which has the unknown physical mechanism about the interaction between the electromagnetic coupling effect and the three-dimensional (3D) MHD effect. To reveal this physical mechanism, 3D numerical simulations based on a customized solver in the OpenFoam environment are conducted to systematically study the effect of inclined gradient magnetic field on the MHD flow states through coupled conducting ducts. Then the mechanism behind the generation of the 3D MHD effect in the gradient magnetic field zones has been discussed in detail. It is found that the electromagnetic coupling effect can enhance this 3D MHD effect in the co-flow case, but suppress it in the counter-flow case. Moreover, the strong electromagnetic coupling effect in the counter-flow case will induce a “self-circulation” flow region in the duct when the external magnetic field is inclined, and the inclined angle also has a great influence on the area of this flow region, which reduces with the increase of the inclined angle. These results are important for the in-depth fundamental understanding of the 3D MHD effect of liquid metal flowing through coupled conducting ducts under inclined gradient magnetic field, and also helpful for the future design of the liquid metal blanket of fusion reactor.</div>","PeriodicalId":634,"journal":{"name":"Journal of Fusion Energy","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138473281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preface to the ISLA-7 Special Issue: Liquid Metals Applications for Fusion ISLA-7特刊前言:液态金属在聚变中的应用

IF 1.1 4区工程技术

Journal of Fusion Energy Pub Date : 2023-11-24 DOI: 10.1007/s10894-023-00393-5

Yoshihiko Hirooka, Masayuki Ono, Francisco L. Tabares, Jiansheng Hu

引用次数: 0

A Duct Design for Reducing Corrosion 一种减少腐蚀的风管设计

IF 1.1 4区工程技术

Journal of Fusion Energy Pub Date : 2023-11-14 DOI: 10.1007/s10894-023-00392-6

Michiya Shimada

引用次数: 0