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首页> 外文期刊>Computer physics communications >The tokamak Monte Carlo fast ion module NUBEAM in the National Transport Code Collaboration library
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The tokamak Monte Carlo fast ion module NUBEAM in the National Transport Code Collaboration library

机译：国家运输法规合作库中的托卡马克蒙特卡洛快速离子模块NUBEAM

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The NUBEAM module is a comprehensive computational model for Neutral Beam Injection (NBI) in tokamaks. It is used to compute power deposition, driven current, momentum transfer, fueling, and other profiles in tokamak plasmas due to NBI. NUBEAM computes the time-dependent deposition and slowing down of the fast ions produced by NBI, taking into consideration beam geometry and composition, ion-neutral interactions (atomic physics), anomalous diffusion of fast ions, the effects of large scale instabilities, the effect of magnetic ripple, and finite Larmor radius effects. The NUBEAM module can also treat fusion product ions that contribute to alpha heating and ash accumulation, whether or not NBI is present. These physical phenomena are important in simulations of present day tokamaks and projections to future devices such as ITER. The NUBEAM module was extracted from the TRANSP integrated modeling code, using standards of the National Transport Code Collaboration (NTCC), and was submitted to the NTCC module library (http://w3.pppl.gov/NTCC). This paper describes the physical processes computed in the NUBEAM module, together with a summary of the numerical techniques that are used. The structure of the NUBEAM module is described, including its dependence on other NTCC library modules. Finally, a description of the procedure for setting up input data for the NUBEAM module and making use of the output is outlined.
机译：NUBEAM模块是托卡马克中的中性束注入（NBI）的综合计算模型。它用于计算由于NBI而导致的托卡马克等离子体中的功率沉积，驱动电流，动量传递，加油和其他分布。 NUBEAM计算NBI产生的快离子随时间的沉积和减慢，并考虑到束的几何形状和组成，离子中性相互作用（原子物理学），快离子的异常扩散，大规模不稳定性的影响，磁波纹和有限的拉莫尔半径效应。 NUBEAM模块还可以处理有助于α加热和灰分积累的聚变产物离子，无论是否存在NBI。这些物理现象对于当今托卡马克的仿真以及对ITER等未来设备的投影非常重要。 NUBEAM模块是使用国家交通法规协作（NTCC）的标准从TRANSP集成建模代码中提取的，并已提交给NTCC模块库（http://w3.pppl.gov/NTCC）。本文描述了在NUBEAM模块中计算的物理过程，并总结了所使用的数值技术。描述了NUBEAM模块的结构，包括其对其他NTCC库模块的依赖性。最后，概述了为NUBEAM模块设置输入数据并利用输出的过程。

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