Cooperative Research by Using Computers

Outline

Computational joint research programs on the solar, terrestrial, and planetary sciences are carried out by using the Fujitsu FX1 and HX600 supercomputer systems at Information Technology Center (ITC), Nagoya University.

Roles of "computer simulations" are to study various phenomena which are not observable or theoretically interpretable such as solar-system planets and extra-solar planets far from the Earth, or whole solar system, as well as reproduction of observed data and verification of theoretical analyses.

The Earth's magnetosphere has various boundary layers, and these meso-scale boundary layers are important for global structures of the magnetosphere. The micro-scale particle acceleration and heating play important roles in meso-scale boundary layers. These cross-scale coupling between global- and meso-scales or micro- and meso-scales are studied by high-performance computer simulations.

Simulations of comparative magnetospheres

Simulations of comparative magnetospheres

  • (Top) MHD simulation of Jupiter's magnetosphere.
  • (Center) MHD simulation of heliosphere.
  • (Bottom) MHD simulation of magnetosphere of Hot Jupiter in extra-solar systems.

    Simulations of cross-scale coupling processes

Simulations of cross-scale coupling processes

  • (Center) Global MHD simulation of Earth's magnetosphere.
  • (Top-right) Fujitsu FX1 supercomputer system.
  • (Top-left) Full particle simulation of collisionless shock.
  • (Bottom-right) Vlasov simulation of magnetic reconnection in the magnetotail.
  • (Bottom-left) Vlasov simulation of Kelvin-Helmholtz instability in the low-latitude boundary layer.