| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
|---|
| Outline of Final Research Achievements |
Numerical simulation of turbulence in finite beta plasma is important for predicting fusion reactor. We have developed a new gyrokinetic simulation code that enables us to evaluate turbulent transport in finite beta plasmas. We revealed plasma beta dependence of turbulent transport of heat and particles by means of the new simulation code. Turbulent fluctuation becomes electromagnetic in finite beta plasma, and magnetic perturbation suppresses drift-wave turbulence that is normally responsible for turbulent transport in zero beta. In finite beta, magnetohydrodynamic turbulence influenced by kinetic effects is responsible for turbulent transport. The saturation mechanism of the electromagnetic turbulence is significantly different from the turbulence at zero beta because of very weak zonal flow which is a structure formation regulating the drift-wave turbulence. A new saturation mechanism of electromagnetic turbulence is a structure formation along the magnetic field line.
|
