典型文献
Implementation of high-fidelity neutronics and thermal-hydraulic coupling calculations in HNET
文献摘要：
To perform nuclear reactor simulations in a more realistic manner,the coupling scheme between neu-tronics and thermal-hydraulics was implemented in the HNET program for both steady-state and transient condi-tions.For simplicity,efficiency,and robustness,the matrix-free Newton/Krylov(MFNK)method was applied to the steady-state coupling calculation.In addition,the optimal perturbation size was adopted to further improve the con-vergence behavior of the MFNK.For the transient coupling simulation,the operator splitting method with a staggered time mesh was utilized to balance the computational cost and accuracy.Finally,VERA Problem 6 with power and boron perturbation and the NEACRP transient benchmark were simulated for analysis.The numerical results show that the MFNK method can outperform Picard iteration in terms of both efficiency and robustness for a wide range of problems.Furthermore,the reasonable agreement between the simulation results and the reference results for the NEACRP transient benchmark verifies the capability of predicting the behavior of the nuclear reactor.
文献关键词：
中图分类号：
作者姓名：
Yan-Ling Zhu;Xing-Wu Chen;Chen Hao;Yi-Zhen Wang;Yun-Lin Xu
作者机构：
Fundamental Science on Nuclear Safety and Simulation Technology Laboratory,Harbin Engineering University,Harbin 150001,China;Institute of Nuclear and New Energy Technology(INET),Tsinghua University,Beijing 100084,China;Purdue University,West Lafayette,IN 47907,USA
文献出处：
引用格式：
[1]Yan-Ling Zhu;Xing-Wu Chen;Chen Hao;Yi-Zhen Wang;Yun-Lin Xu-.Implementation of high-fidelity neutronics and thermal-hydraulic coupling calculations in HNET)[J].核技术（英文版）,2022(11):120-132
A类：
neutronics,HNET,MFNK,NEACRP
B类：
Implementation,high,fidelity,thermal,coupling,calculations,To,nuclear,reactor,simulations,realistic,manner,scheme,between,hydraulics,was,implemented,program,both,steady,state,transient,condi,For,simplicity,efficiency,robustness,matrix,free,Newton,Krylov,method,applied,In,addition,optimal,perturbation,size,adopted,further,improve,vergence,behavior,operator,splitting,staggered,mesh,utilized,balance,computational,cost,accuracy,Finally,VERA,Problem,power,boron,benchmark,were,simulated,analysis,numerical,results,show,that,can,outperform,Picard,iteration,terms,wide,range,problems,Furthermore,reasonable,agreement,reference,verifies,capability,predicting
AB值：
0.525768
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