Articles: divertor plate erosion and radiating vapour shield formation during hard disruptions: theory and numerical modelling

L.L.Lengyel; K.Lackner; P.J.Lalousis

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Articles: divertor plate erosion and radiating vapour shield formation during hard disruptions: theory and numerical modelling

机译：文章：硬扰动期间分流板的腐蚀和辐射蒸汽屏蔽层的形成：理论和数值模型

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The time evolution of radiating vapour shields over eroding solid surfaces and the resulting erosion rates are modelled by one dimensional(1-D)and 1 1/2-D resistive MHD codes. Graphite or carbonized divertor plates subjected to high energy deuterium plasma particles during disruptions or giant ELMs are considered. The energy flux range assumed corresponds to ITER conditions. Vari- ous physical phenomena having a primary effect on the erosion rate, such as collisional interaction of the energy carriers with the target(solid surface or vapour particles), electrostatic shielding, magne- tohydrodynamic interaction and radiant energy transport, are investigated in detail.

机译：用一维（1-D）和1 1 / 2-D电阻MHD模型来模拟在侵蚀的固体表面上辐射蒸汽屏蔽的时间演变以及由此产生的腐蚀速率。石墨或碳化的偏滤板在破裂或巨大的ELM期间会受到高能氘等离子体颗粒的影响。假定的能量通量范围对应于ITER条件。详细研究了对腐蚀速率有主要影响的各种物理现象，例如能量载体与目标（固体表面或蒸气颗粒）的碰撞相互作用，静电屏蔽，磁流体动力学相互作用和辐射能传输。

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《Nuclear fusion》 |1998年第10期|p.1435-1459|共25页
作者
L.L.Lengyel; K.Lackner; P.J.Lalousis;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类原子核物理学、高能物理学;
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1. EXPERIMENTAL SIMULATION AND NUMERICAL MODELING OF VAPOR SHIELD FORMATION AND DIVERTOR MATERIAL EROSION FOR ITER TYPICAL PLASMA DISRUPTIONS [J] . Wurz H., Bakhtin VP., Konkashbaev I., Journal of Nuclear Materials: Materials Aspects of Fission and Fusion . 1995,第0期

机译：等离子体等离子体扰动的蒸气屏蔽形成和分流器材料侵蚀的实验模拟和数值模拟
2. Modelling of Carbon Erosion and Transport at Divertor Target Plate Using a Suite of Codes [J] . S. Dai, J. Sun Ch. Sang D. Z. Wang Contributions to Plasma Physics . 2011,第9期

机译：使用一套代码对转向器目标板上的碳侵蚀和迁移进行建模
3. Modelling of Carbon Erosion and Transport at Divertor Target Plate Using a Suite of Codes [J] . S. Dai, Ch. Sang, D. Z.Wang Contributions to Plasma Physics . 2011,第9期

机译：使用一套代码对转向器目标板上的碳侵蚀和迁移进行建模
4. MODELS AND SIMULATION FOR DIVERTOR EROSION FOLLOWING PLASMA DISRUPTION IN TOKOMAK REACTORS [C] . N. M. Almousa, J. G. Gilligan, M. A. Bourham IEEE Symposium on Fusion Engineering . 2015

机译：在托克马克反应堆中血浆中断后转向器侵蚀的模型和仿真
5. Numerical models of the dynamics of lithospheric deformation at complex plate boundaries. [D] . Malservisi, Rocco. 2002

机译：复杂板块边界岩石圈变形动力学的数值模型。
6. An Integrated World Modeling Theory (IWMT) of Consciousness: Combining Integrated Information and Global Neuronal Workspace Theories With the Free Energy Principle and Active Inference Framework; Toward Solving the Hard Problem and Characterizing Agentic Causation [O] . Adam Safron 2020

机译：一种综合世界建模理论（IWMT）的意识：将综合信息和全球神经元工作空间理论与自由能原理和有源推断框架相结合;解决难题和表征患者的因果关系
7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。
8. Erosion damage of nearby plasma-facing components during a disruption on the divertor plate [R] . Hassanein, A. , Konkashbaev, I. 1996

机译：在偏滤器板上的破坏期间附近的面向等离子体的部件的侵蚀损坏

Articles: divertor plate erosion and radiating vapour shield formation during hard disruptions: theory and numerical modelling

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