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Damage of ITER Divertor Plates at Plasma Disruption

机译:等离子体破碎时ITER分流板的损坏

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摘要

The analysis of the effect of ELMs and plasma disruptions in ITER on the divertor plates is carried out. The divertor plates will not melt at ELMs, while melting is expected at plasma disruption. The transport of melted tungsten and droplet erosion are not possible because Kelvin-Helmholtz instability and instability of pulsing bumps do not develop because of the low dynamic pressure of tangential flow of both the initial plasma and plasma formed from the erosion products. The most serious erosion can be the formation of cracks and brittle destruction. The evaporation from the surface will be an additional reason for mass loss.
机译:分析了ITER中ELM和等离子体破坏对分流板的影响。分流板在ELM时不会熔化,而在等离子体破碎时会熔化。熔化钨的传输和液滴侵蚀是不可能的,因为开尔文-亥姆霍兹不稳定性和脉冲凸块的不稳定性不会发展,因为初始等离子体和由侵蚀产物形成的等离子体的切向流动动态压力较低。最严重的侵蚀可能是裂缝的形成和脆性破坏。表面的蒸发将是质量损失的另一个原因。

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