ntkFoam: An OpenFOAM based neutron transport kinetics solver for nuclear reactor simulation
ntkFoam: An OpenFOAM based neutron transport kinetics solver for nuclear reactor simulation
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ntkFoam：基于 OpenFOAM 的中子输运动力学求解器，用于核反应堆模拟
DOI：
10.1016/j.camwa.2019.09.015
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发表时间：
2019-09
影响因子：
2.9
通讯作者：
Junhe Yang
中科院分区：
文献类型：
--
作者：
Yu Ma;Yahui Wang;Junhe Yang
由于核反应堆详细数值模拟的复杂性，特别是先进反应堆的复杂几何和多物理耦合特性，需要开发一种用于核反应堆工程和设计的核反应堆动力学求解器。基于开源C++软件OpenFOAM，建立了一个用于核反应堆动力学模拟的中子输运动力学求解器ntkFoam，从控制方程到具体实现。用有限体积法考虑了多群中子输运方程和缓发中子前兆平衡方程之间的耦合。通过在OpenFOAM中引入逆幂方法，计算了k-本征值问题，并利用欧拉隐式格式耦合了中子输运和延迟中子前兆计算，模拟了暂态动力学问题。数值结果表明，该方法能准确、灵活地模拟多群中子输运动力学问题，并可采用规则和不规则两种网格结构。这项工作可以为核反应堆耦合计算提供一些新的视角和基础。
Due to the complexity of detailed nuclear reactor numerical simulation, especially the complicated geometry and multi-physics coupling properties of the advanced reactor, a nuclear reactor kinetics solver for nuclear reactor engineering and design needs to be developed. Based on the open source C++ software OpenFOAM, this work establishes a neutron transport kinetics solver, namely ntkFoam, for the nuclear reactor kinetics simulation, from the governing equations to the detailed implementations. The coupling between multi-group neutron transport equations and the delayed neutron precursor balance equations are considered with using the finite volume method. By introducing the inverse power method to the OpenFOAM, thek-eigenvalue problems are calculated, and by coupling the neutron transport and delayed neutron precursor calculations using the Euler implicit scheme, the transient kinetics problems are simulated. Numerical results show that the proposed ntkFoam can simulate the multi-group neutron transport kinetics problem accurately and flexibility, and both the regular and irregular mesh configurations can be adopted. This work can provide some new perspectives and foundations to nuclear reactor coupling calculations.
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影响因子：
2.7
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
1.2
作者：
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通讯作者：
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影响因子：
2.1
作者：
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通讯作者：
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影响因子：
1.9
作者：
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通讯作者：
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