| 第一壁泄漏杂质的分布计算 |
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| 引用本文： | 高兴华.第一壁泄漏杂质的分布计算[J].计算物理,1998,15(1):58-64. |
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| 作者姓名： | 高兴华 |
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| 作者单位： | 中国科学院等离子体物理所, 合肥 230031 |
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| 基金项目： | 国家863计划资助课题 |
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| 摘 要： | 以数值计算法计算了第一壁冷却剂泄漏氦杂质在等离子体中的分布,氦分布的峰值在SOL(Scrape-ofLayer)区。当要求等离子体中心的氦浓度小于5%时,允许的最大泄漏率Nmax约为0.35×10-3Mol/s,允许的最大裂纹尺寸长约为3.1mm,宽约为0.63mm。影响杂质分布和浓度的主要因素有壁温、等离子体边缘温度、密度和SOL区的温度密度长度。壁温越低、等离子体边缘温度越低、密度越高、温度和密度长度越大,则中心杂质浓度越小,且杂质分布峰值越接近第一壁。
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| 关 键 词： | 杂质分布 刮去层(SOL) 最大泄漏率(MLR) |
| 收稿时间： | 1997-02-27 |
| 修稿时间： | 1997-04-28 |
DISTRIBUTION CALCULATION FOR IMPURITY LEAKED FROM FIRST WALL |
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| Gao Xinghua.DISTRIBUTION CALCULATION FOR IMPURITY LEAKED FROM FIRST WALL[J].Chinese Journal of Computational Physics,1998,15(1):58-64. |
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| Authors: | Gao Xinghua |
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| Institution: | Institute of Plasma Physics, Academia Sinica, Hefei 230031 |
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| Abstract: | The distribution in the plasma of coolant-Helium impurity leaked from the first wall has been calculated and numericall results have given. The peak of the distribution is within the scrape-off layer (SOL). When Helium comcentration at the plasma center is required to be less than 5 percents, permitted Maximum-Leak-Rate (MLR) Nmax is about 0.35×10-3 mol/s and the biggest flaw allowed is with the length of about 3.1mm and the width of 0.63 mm. The main factors effecting the impurity distribution and concentration are such as the temperature and density at the edge of plasma, the temperature and density scrape-off lengths in SOL and the wall temperature. |
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| Keywords: | Impurity distribution Scrape-off-layer (SOL) Maximum-Leak-Rate (MLR) |
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