#plasma

Richtmyer-Meshkov Instability If you send a shock wave through a magnetized plasma–something that happens in both supernova explosions and inertial confinement fusion–it can trigger an instability known as the Richtmyer-Meshkov instability. The image above shows a form of this, taken from a simulation. Rather than treating the plasma as a single idealized fluid, the researchers represented it as two fluids: an ion fluid and an electron fluid. This allowed them to better capture what happens when certain components of the plasma react to changes faster than others do. The image itself shows the electron number density across the fluid, where darker colors represent higher electron number density. The interface between high and low-densities shows a roll-up instability that resembles the Kelvin-Helmholtz instability, but there are also regions of mushroom-like plumes that more closely resemble Rayleigh-Taylor instabilities. The authors note that these structures don’t appear in simulations that represent a plasma as a single fluid; you need the two-fluid representation to see them. (Image and research credit: O. Thompson et al.) #CFD #computationalFluidDynamics #fluidDynamics #instability #KelvinHelmholtzInstability #magnetohydrodynamics #numericalSimulation #physics #plasma #RayleighTaylorInstability #RichtmyerMeshkovInstability #science #shockwave

Kscreen on Ubuntu 25.10 cannot rotate screens | Which config files to delete? #multiplemonitors #kde #plasma #2510 #displayrotation https://askubuntu.com/q/1563843/612

No dobra, zainstalowałem #Ubuntu i #KDE #Plasma , co teraz sb fajnego mogę ustawić?

real shout-out to the #plasma-mobile people, pretty slick on a tablet. I do wonder how hard it would be to add a way to kill apps from the tray.