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DIVERTOR GEOMETRY OPTIMIZATION FOR ASDEX UPGRADE

机译:用于ASDEX升级的分流器几何优化

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One of the critical questions to be solved for ITER (or any other reactor) is the power exhaust problem (compatible with particle exhaust). Optimized diverters have to be tested in existing geometries based mainly on the idea of closing them Very efficiently to the main chamber and, by the choice of the plate and baffle geometry, positively influencing the flow pattern of hydrogen favoring good impurity entrainment. Also, for ASDEX Upgrade there is an experimental necessity for an improved divertor due to the increased heating power (24 MW will be available from 1997 on compared to the present Is MW). We present the optimization strategy for the divertor II of ASDEX Upgrade, using elaborate numerical models and codes (B2-Eirene) as well as simple models. We start with the choice of a proper target plate geometry, and then further discuss how main chamber and private flux baffling will be done, and how this affects neutral recirculation pattern and pumping properties. For the final configuration the impurity entrainment properties are analyzed. [References: 16]
机译:ITER(或任何其他反应堆)要解决的关键问题之一是动力排放问题(与颗粒排放兼容)。优化的分流器必须在现有几何形状的基础上进行测试,主要基于将其非常有效地封闭到主腔室的想法,并且通过选择板和挡板的几何形状,对氢的流动方式产生积极影响,有利于良好的夹带杂质。同样,对于ASDEX升级,由于加热功率的增加,从实验上有必要改进分流器(与现在的Is MW相比,从1997年起将提供24 MW)。我们使用精心设计的数值模型和代码(B2-Eirene)以及简单的模型,为ASDEX升级的转向器II提供了优化策略。我们从选择合适的目标板几何形状开始,然后进一步讨论如何进行主室和专用通量折流,以及这如何影响中性再循环模式和泵送特性。对于最终配置,分析了杂质夹带特性。 [参考:16]

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