Comprehensive physical models and simulation package for plasma/material interactions during plasma instabilities
Comprehensive physical models and simulation package for plasma/material interactions during plasma instabilities
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DOI：
10.1016/s0022-3115(99)00052-5
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发表时间：
1999-08
影响因子：
3.1
通讯作者：
A. Hassanein;I. Konkashbaev
中科院分区：
文献类型：
--
作者：
A. Hassanein;I. Konkashbaev
等离子体不稳定性对面向等离子体元件（PFC）的损伤仍然是托卡马克概念成功的主要障碍。破坏的程度取决于破坏等离子体的详细物理学，以及等离子体-材料相互作用的物理学。一个全面的计算机软件包，称为高能量与一般非均质目标系统（HEIGHTS）的相互作用已经开发出来，并由几个集成的计算机模型，遵循的开始，在刮除层（SOL）通过运输的侵蚀碎片和飞溅的目标材料附近的位置作为一个结果的沉积能量的等离子体中断。该软件包可以研究，第一次，等离子体湍流行为的SOL和预测等离子体参数和条件偏滤器板。全二维（2-D）的综合辐射磁流体动力学（MHD）模型与目标热力学和液体流体动力学耦合，以评估等离子体面对材料的综合响应。影响等离子体面临的和附近的组件的寿命的因素，如蒸汽云约束和蒸汽去除由于MHD效应，损坏附近的组件，由于强烈的蒸汽辐射，熔体飞溅，和脆性破坏的目标材料的损失，也建模和讨论。
Damage to plasma-facing components (PFCs) from plasma instabilities remains a major obstacle to a successful tokamak concept. The extent of the damage depends on the detailed physics of the disrupting plasma, as well as on the physics of plasma-material interactions. A comprehensive computer package called High Energy Interaction with General Heterogeneous Target Systems (HEIGHTS) has been developed and consists of several integrated computer models that follow the beginning of a plasma disruption at the scrape-off layer (SOL) through the transport of the eroded debris and splashed target materials to nearby locations as a result of the deposited energy. The package can study, for the first time, plasma-turbulent behavior in the SOL and predict the plasma parameters and conditions at the divertor plate. Full two-dimensional (2-D) comprehensive radiation magnetohydrodynamic (MHD) models are coupled with target thermodynamics and liquid hydrodynamics to evaluate the integrated response of plasma-facing materials. Factors that influence the lifetime of plasma-facing and nearby components, such as loss of vapor cloud confinement and vapor removal due to MHD effects, damage to nearby components due to intense vapor radiation, melt splashing, and brittle destruction of target materials, are also modeled and discussed.