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9 Results Found

  • Article
  • Open Access
4 Citations
1,982 Views
14 Pages

A Modified JFNK for Solving the HTR Steady State Secondary Circuit Problem

  • Zhuo Jiang,
  • Yingjie Wu,
  • Han Zhang,
  • Lixun Liu,
  • Jiong Guo and
  • Fu Li

26 February 2023

A nuclear power plant is a complex coupling system, which features multi-physics coupling between reactor physics and thermal-hydraulics in the reactor core, as well as the multi-circuit coupling between the primary circuit and the secondary circuit...

  • Article
  • Open Access
4 Citations
2,639 Views
14 Pages

Optimization and Improvement of Sodium Heated Once-through Steam Generator Transient Analysis Code Based on the JFNK Algorithm

  • Bo Wang,
  • Zhenyu Feng,
  • Youchun Chen,
  • Dalin Zhang,
  • Zhiguang Wu,
  • Jun Li,
  • Mingyang Li,
  • Ruoxin Ma and
  • Chao Li

1 January 2023

The sodium heated once-through steam generator (OTSG) is a vital barrier separating sodium and the water loop in the sodium-cooled fast reactor (SFR). In view of the timeliness requirement of OTSG operation performance evaluation, Fortran95 programmi...

  • Article
  • Open Access
14 Citations
3,899 Views
13 Pages

22 August 2020

Since polymetallic ores show higher anomalies in gravity exploration methods, we usually obtain the position and range of ore bodies by density inversion of gravity data. The three-dimensional (3D) gravity focusing density inversion is a common inter...

  • Article
  • Open Access
2 Citations
1,969 Views
19 Pages

8 November 2023

The study of ship waves is important for ship detection, coastal erosion and wave drag. This paper proposed a highly paralleled numerical computation method for efficiently simulating three-dimensional nonlinear kelvin waves. First, a numerical model...

  • Article
  • Open Access
2 Citations
2,028 Views
16 Pages

An Efficient and Robust ILU(k) Preconditioner for Steady-State Neutron Diffusion Problem Based on MOOSE

  • Yingjie Wu,
  • Han Zhang,
  • Lixun Liu,
  • Huanran Tang,
  • Qinrong Dou,
  • Jiong Guo and
  • Fu Li

21 March 2024

Jacobian-free Newton Krylov (JFNK) is an attractive method to solve nonlinear equations in the nuclear engineering community, and has been successfully applied to steady-state neutron diffusion k-eigenvalue problems and multi-physics coupling problem...

  • Article
  • Open Access
4 Citations
2,561 Views
23 Pages

29 May 2023

A Jacobian-free Newton–Krylov (JFNK) method with effective preconditioning strategies is introduced to solve a diffusion-based tumor growth model, also known as the Fisher–Kolmogorov partial differential equation (PDE). The time discretiz...

  • Article
  • Open Access
2 Citations
2,218 Views
19 Pages

Simultaneous Solution of Helical Coiled Once-Through Steam Generator with High-Speed Water Property Library

  • Yingjie Wu,
  • Zhuo Jiang,
  • Han Zhang,
  • Lixun Liu,
  • Huanran Tang,
  • Jiong Guo and
  • Fu Li

6 February 2023

Efficient simulation of the helical coiled once-through steam generator (H-OTSG) is crucial in the design and safety analysis of the high-temperature gas-cooled reactor (HTGR). The physical property and phase transformation of water in the steam gene...

  • Article
  • Open Access
2 Citations
2,306 Views
27 Pages

Transient Simulation and Parameter Sensitivity Analysis of Godiva Experiment Based on MOOSE Platform

  • Lipeng Wang,
  • Shuwei Guo,
  • Tianliang Hu,
  • Duoyu Jiang,
  • Xinyi Zhang,
  • Lu Cao and
  • Xinbiao Jiang

12 September 2023

The fast-neutron burst reactor is a chain reactor that can operate in a prompt critical state. In order to ensure the operational safety of the fast-neutron-pulse reactor and prevent the supercritical pulse from causing physical damage to the materia...

  • Article
  • Open Access
12 Citations
5,948 Views
18 Pages

Numerical Simulation of the Kelvin Wake Patterns

  • Xiaofeng Sun,
  • Miaoyu Cai,
  • Jingkui Wang and
  • Chunlei Liu

20 June 2022

The ship wave is of great interest for wave drag and coastal erosion. This paper proposes a mechanism of ship wave transformation to explore the effects of ship speed and ship size on the waveform. Firstly, based on the theory of potential flow, the...