| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
By developing extended MHD model and new numerical technique for MHD stability analysis with high accuracy, we analyzed the physics related to suppress and/or mitigate edge localized mode (ELM) analytically and numerically. It is found that mitigated ELM can be regarded as the short wavelength MHD mode which can become unstable by taking into account non-ideal MHD effect, and the stability of this short wave length MHD mode depends on the direction of plasma rotation. These results are qualitatively consistent with the observation in experiment. In addition, by using the newly developed numerical code based on extended MHD model, we clarified that resistive wall mode can be excited due to coupling with stable ideal MHD mode.
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