Archiv: "Fugaku" computer

14.11.2021 - 14:00 [ ]

Solar differential rotation reproduced with high-resolution simulation

(Published: 13 September 2021)

Here, we show that a high-resolution calculation succeeds in reproducing the solar-like differential rotation. Our calculations indicate that the strong magnetic field generated by a small-scale dynamo has a significant impact on thermal convection. The successful reproduction of the differential rotation, convection and magnetic field achieved in our calculation is an essential step to understanding the cause of the most basic nature of solar activity, specifically, the 11 yr cycle of sunspot activity.

14.11.2021 - 12:24 [ ]

Accurate Simulation of Sun’s Rotation Might Illuminate Solar Cycle


Japanese scientists said they have created the first accurate computer simulation of how the Sun rotates, reproducing a phenomenon in which its equatorial area spins faster than its polar regions. The insight could help explain the whys and hows of the solar cycle, one of the biggest mysteries of our star.