Effect of core pressure gradient just inside the top of the pedestal on the energy loss due to the edge localized mode in JT-60U

N. Hayashi; N. Oyama; T. Takizuka; N. Aiba; T. Ozeki

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Effect of core pressure gradient just inside the top of the pedestal on the energy loss due to the edge localized mode in JT-60U

机译：在JT-60U中，由于边缘局部化模式，基座顶部内部的核心压力梯度对能量损失的影响

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摘要

The effect of core pressure gradient just inside the top of the pedestal on the energy loss due to type-Ⅰ edge localized modes (ELMs) is studied. An analysis of the experimental data from JT-60U shows that the ELM energy loss normalized by the pedestal stored energy increases with the pressure gradient inside the top of the pedestal normalized by the pedestal pressure gradient. The dependence of normalized ELM energy loss on the normalized pressure gradient inside the top of the pedestal is similar to that predicted by the integrated code TOPICS-IB. The stability of linear ideal MHD modes is analysed using experimental profiles. It is found that the steep core pressure gradient inside the top of the pedestal broadens the eigenfunction profiles of unstable modes inwards. The TOPICS-IB simulation predicted that this broadening can enhance the ELM energy loss.

机译：研究了基座顶部内部的核心压力梯度对由于Ⅰ型边缘局域模（ELMs）引起的能量损失的影响。对来自JT-60U的实验数据的分析表明，通过基座存储的能量归一化的ELM能量损耗随通过基座压力梯度归一化的基座顶部内部的压力梯度而增加。归一化ELM能量损耗对基座顶部内部归一化压力梯度的依赖性与集成代码TOPICS-IB所预测的相似。使用实验曲线分析了线性理想MHD模式的稳定性。发现基座顶部内部陡峭的核心压力梯度向内加宽了不稳定模式的本征函数分布。 TOPICS-IB仿真预测，这种拓宽可以增强ELM能量损失。

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《Nuclear fusion》 |2011年第7期|p.17.1-17.7|共7页
作者
N. Hayashi; N. Oyama; T. Takizuka; N. Aiba; T. Ozeki;
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Japan Atomic Energy Agency, Naka, Ibaraki-ken 311-0193, Japan;

Japan Atomic Energy Agency, Naka, Ibaraki-ken 311-0193, Japan;

Japan Atomic Energy Agency, Naka, Ibaraki-ken 311-0193, Japan;

Japan Atomic Energy Agency, Naka, Ibaraki-ken 311-0193, Japan;

Japan Atomic Energy Agency, Naka, Ibaraki-ken 311-0193, Japan;

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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);
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正文语种 eng
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1. Boundary condition for toroidal plasma flow imposed at the separatrix in high confinement JT-60U plasmas with edge localized modes and the physics process in pedestal structure formation [J] . Kamiya K., Honda M., Urano H., Physics of plasmas . 2014,第12期

机译：具有边缘局部化模式的高约束JT-60U等离子体中，在分离线处施加环形等离子体流的边界条件以及基座结构形成的物理过程
2. Boundary condition for toroidal plasma flow imposed at the separatrix in high confinement JT-60U plasmas with edge localized modes and the physics process in pedestal structure formation [J] . Kamiya K., Honda M., Urano H., Physics of plasmas . 2014,第12期

机译：具有边缘局部化模式的高约束JT-60U等离子体中，在分离线处施加环形等离子体流的边界条件以及基座结构形成的物理过程
3. Impact of the pedestal plasma density on dynamics of edge localized mode crashes and energy loss scaling [J] . Xu X. Q., Ma J. F., Li G. Q. Physics of plasmas . 2014,第12期

机译：基座等离子体密度对边缘局部模式碰撞动力学和能量损失定标的影响
4. Enhanced Pedestal Pressure and Parameter-Linkages Determining Edge Pedestal Structure in JT-60U Type Ⅰ and Type Ⅱ ELMy H-mode [C] . Y. Kamada, H. Takenaga, H. Urano, IAEA fusion energy conference . 2003

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5. Procedures for predicting pressures inside cores. [D] . Winardi, Leonard. 2007

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8. Correlation Between Core and Pedestal Temperatures in JT-60U: Experiment andModeling [R] . Mikkelsen, D. R., Shirai, H., Asakura, N., 2000

机译：JT-60U核心与基座温度的相关性：实验与建模

Effect of core pressure gradient just inside the top of the pedestal on the energy loss due to the edge localized mode in JT-60U

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