| Budget Amount *help |
¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
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| Outline of Final Research Achievements |
Before fluctuations arising in plasmas are dissipated and transformed into heat, fine structures of the electromagnetic fields and the distribution function are generated on the phase space, that consists of the real and velocity spaces, because of the low collisionality in high-temperature plasmas in space and fusion. In this study, we have analyzed turbulence in magnetized plasmas by means of numerical simulations on supercomputers and have revealed the followings. (1) Fine structures of the auroral electromagnetic fluctuations are generated through turbulence transition. (2) The velocity-space spectrum of the distribution function in the drift wave turbulence shows a power law profile. (3) A subrange with a constant transfer function of fluctuations is formed in the power spectrum, leading to universality in the formation process of fine-scale structures of the distribution function.
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