کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10645055 | 999835 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling of macroscopic melt layer splashing during plasma instabilities
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Damage of plasma-facing components in tokamaks due to various plasma instabilities remains one of the most important problems for successful operation. Macroscopic melt losses from divertor plates and nearby components into core plasma are significant material erosion lifetime and plasma contamination issues. The linear stability analysis and computational modeling are used to predict the onset and growth of surface waves on the plasma-liquid metal interface. The whole course of development, growth, and breakup of waves is modeled for the first time. The new physics mechanism involved in breakdown of a thin melt layer is presented. It is found that the melt layer undergoes macroscopic motion, bulk melt splitting, development and growth of liquid tungsten ligaments that transform to thin threads and eventually break into droplets. These results shed light on the physical behavior of a melt layer under transient plasma instabilities such as edge-localized modes and disruptions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 415, Issue 1, Supplement, 1 August 2011, Pages S74-S77
Journal: Journal of Nuclear Materials - Volume 415, Issue 1, Supplement, 1 August 2011, Pages S74-S77
نویسندگان
G. Miloshevsky, A. Hassanein,