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Snapshot: multiphysics coupling talk at the 19th MHD Days in Potsdam

At this year's MHD Days our group member Simon Candelaresi presented his latest work on adaptive model selection in multiphysics coupling using Trixi.jl. There was a lively exchange of ideas with other researchers who use and develop methods of studying magnetohydrodynamic phenomena in laboratory plasma and astrophysics up to cosmic length scale. The MHD Days have been a? regular event since 1997.

Using p4est meshes for our simulations we implemented flexible multiphysics coupling across interface boundaries in Trixi.jl. Unlike structured meshes, p4est meshes can be much more flexible. They do not require to be rectangular or even simply connected. As a test case we show here two meshes. One writes the word "Trixi.jl" and the other is its complement. We couple an MHD system with an Euler system and initialize the domain with a linear pressure wave that travels to the left.
mhd_euler_t0
Coupled Euler-Mhd system using two p4est meshes. Shown is the gas density at time t = 0. ? 伟德国际_伟德国际1946$娱乐app游戏 of Augsburg
mhd_euler_t34
Coupled Euler-Mhd system using two p4est meshes. Shown is the gas density at time t = 34. ? 伟德国际_伟德国际1946$娱乐app游戏 of Augsburg

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