Behaviour of melted tungsten plasma facing components under ITER-like transient heat loads

Experimental validation of 3D simulations of tungsten melt erosion under ITER-like transient loads

“…Results obtained for different radius of the brush edge rounding R e and plasma pressures showed that the centrifugal force at the brush edges is responsible for the bridge formation and the gap overlapping. The rate of the bridge growth is proportional to the melt velocity (the melt velocity is proportional to the applied plasma pressure) and reverse proportional to the R e [8]. Thus for R e = 0.1 cm (p = 0.2 MPa) visible bridges appears after seven pulses ( Fig.…”

Disruptions in ITER and strategies for their control and mitigation

“…Unmitigated major disruptions (as well as VDEs [1]) at high stored energies can cause masses of the order of kilograms to be melted. How much of this material will be mobilised and eventually converted into dust depends on whether Rayleigh-Taylor instabilities driven by eddy currents can develop during these fast transients [6].…”

Metal Surface Erosion Due to Wave Relief Formation Under Power Plasma Flow

“…Зарождение волн на расплавленной поверхности обусловлено развитием тангенциальной неустойчивости, вызванной потоком пара/плазмы над расплавленной поверхностью [3]. До сих пор образование волн при воздействии плазменных потоков на металлы рассматривалось в линейном приближении [4][5][6][7][8], которое определяет длину волны [3]:…”