المؤلفون: Watson, Harry Alexander James, Colella, Francesco

المصدر: 2023 IEEE International Symposium on Product Compliance Engineering (ISPCE) Product Compliance Engineering (ISPCE), 2023 IEEE International Symposium on. :1-7 May, 2023

Relation: 2023 IEEE International Symposium on Product Compliance Engineering (ISPCE)

المؤلفون: Zhaocai Xiang, Qiafeng Chen, Pengcheng Zhao

المصدر: Nuclear Engineering and Technology, Vol 56, Iss 8, Pp 2948-2957 (2024)

مصطلحات موضوعية: Neutron diffusion equation, Implicitly restarted Arnoldi method, Proper orthogonal decomposition, Galerkin projection, Neutron flux reconstruction, Nuclear engineering. Atomic power, TK9001-9401

وصف الملف: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S1738573324001165; https://doaj.org/toc/1738-5733

URL الوصول: https://doaj.org/article/00e73864b42843dc942464cdf0b49b47

المؤلفون: Liu, Xuefeng^Aff13

المساهمون: Bellomo, Nicola, Series Editor^Aff1, Benzi, Michele, Series Editor^Aff2, Jorgensen, Palle, Series Editor^Aff3, Li, Tatsien, Series Editor^Aff4, Melnik, Roderick, Series Editor^Aff5, Scherzer, Otmar, Series Editor^Aff6, Steinberg, Benjamin, Series Editor^Aff7, Reichel, Lothar, Series Editor^Aff8, Tschinkel, Yuri, Series Editor^Aff9, Yin, George, Series Editor^Aff10, Zhang, Ping, Series Editor^Aff11, Liu, Xuefeng^Aff12

المصدر: Guaranteed Computational Methods for Self-Adjoint Differential Eigenvalue Problems. :93-121

المؤلفون: Liu, Xuefeng^Aff13

المساهمون: Bellomo, Nicola, Series Editor^Aff1, Benzi, Michele, Series Editor^Aff2, Jorgensen, Palle, Series Editor^Aff3, Li, Tatsien, Series Editor^Aff4, Melnik, Roderick, Series Editor^Aff5, Scherzer, Otmar, Series Editor^Aff6, Steinberg, Benjamin, Series Editor^Aff7, Reichel, Lothar, Series Editor^Aff8, Tschinkel, Yuri, Series Editor^Aff9, Yin, George, Series Editor^Aff10, Zhang, Ping, Series Editor^Aff11, Liu, Xuefeng^Aff12

المصدر: Guaranteed Computational Methods for Self-Adjoint Differential Eigenvalue Problems. :41-52

المؤلفون: XIANG Zhaocai, CHEN Qiafeng, ZHAO Pengcheng, ZHANG Qinghang

المصدر: He jishu, Vol 47, Iss 2, Pp 135-141 (2024)

مصطلحات موضوعية: neutron diffusion equation, implicitly restarted arnoldi method, proper orthogonal decomposition, galerkin projection, neutron flux reconstruction, Nuclear engineering. Atomic power, TK9001-9401

وصف الملف: electronic resource

Relation: http://www.hjs.sinap.ac.cn/thesisDetails#10.11889/j.0253-3219.2024.hjs.47.020604&lang=zh; https://doaj.org/toc/0253-3219

URL الوصول: https://doaj.org/article/8bc2e25bdecd430ca431a192fee4b6a5

المؤلفون: Asztalos, Katherine J.^{Aff1, Aff2, IDs00162023006701_cor1}, Almashjary, Abdulrahman, Dawson, Scott T. M.

المصدر: Theoretical and Computational Fluid Dynamics. :1-23

المؤلفون: Mirinejad, Hossein, Inanc, Tamer, Zurada, Jacek M.

المصدر: IEEE/CAA Journal of Automatica Sinica IEEE/CAA J. Autom. Sinica Automatica Sinica, IEEE/CAA Journal of. 8(8):1380-1388 Aug, 2021

المؤلفون: Lyu, Chao, Sheng, Yi, Zhang, Shuang, Zhu, Shihuai, Song, Yankong, Yu, Honghai

المصدر: 2020 15th IEEE Conference on Industrial Electronics and Applications (ICIEA) Industrial Electronics and Applications (ICIEA), 2020 15th IEEE Conference on. :1727-1732 Nov, 2020

Relation: 2020 15th IEEE Conference on Industrial Electronics and Applications (ICIEA)

المؤلفون: In order to improve the efficiency of core physical uncertainty analysis based on sampling statistics, the proper orthogonal decomposition (POD) and Galerkin projection method were combined to study the application feasibility of reduced-order model based on POD-Galerkin method in core physical uncertainty analysis. The two-dimensional two group TWIGL benchmark question was taken as the research object, the key variation characteristics of the core flux distribution were extracted under the finite perturbation of the group constants of each material region, and the full-order neutron diffusion problem was projected on the variation characteristics to establish a reduced-order neutron diffusion model. The reduced-order model was used to replace the full-order model to carry out the uncertainty analysis of the group constants of the material region. The results show that the bias of the mathematical expectation of keff calculated by reduced-order and full-order models is close to 1 pcm. In addition, compared with the calculation time required for uncertainty analysis of full-order model, the analysis time of reduced-order model (including the calculation time of the full-order model required for the construction of reduced-order model) is only 11.48%, which greatly improves the efficiency of uncertainty analysis. The biases of mathematical expectation of keff calculated by reduced-order and full-order models based on Latin hypercube sampling and simple random sampling are less than 8 pcm, and under the same sample size, the bias from the Latin hypercube sampling result is smaller. From the TWIGL benchmark test results, under the same sample size, Latin hypercube sampling method is more recommended for POD-Galerkin reduced-order model.

المصدر: Yuanzineng kexue jishu, Vol 57, Iss 8, Pp 1584-1591 (2023)

مصطلحات موضوعية: reduced-order model, proper orthogonal decomposition, galerkin projection, uncertainty analysis, Nuclear engineering. Atomic power, TK9001-9401, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798

وصف الملف: electronic resource

Relation: https://www.aest.org.cn/CN/10.7538/yzk.2022.youxian.0835; https://doaj.org/toc/1000-6931

URL الوصول: https://doaj.org/article/be47f940308546258229a4da61f078ca

المؤلفون: Tao Yang, Pengcheng Zhao, Yanan Zhao, Tao Yu

المصدر: Nuclear Engineering and Technology, Vol 55, Iss 8, Pp 2835-2843 (2023)

مصطلحات موضوعية: Lead-bismuth fast reactor, Upper plenum, Thermal stratification, Computational fluid dynamics, Proper orthogonal decomposition, Galerkin projection, Nuclear engineering. Atomic power, TK9001-9401

وصف الملف: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S1738573323002279; https://doaj.org/toc/1738-5733

URL الوصول: https://doaj.org/article/8284d623238d41349548869f4f566ba5