Numerical benchmark of transient pressure-driven metallic melt flows

Vignitchouk, L.; Khodak, A.; Ratynskaia, S.; Kaganovich, I. D.

doi:10.1016/j.nme.2020.100826

Numerical benchmark of transient pressure-driven metallic melt flows

Journal Article · Sat Oct 31 00:00:00 EDT 2020 · Nuclear Materials and Energy

DOI:https://doi.org/10.1016/j.nme.2020.100826· OSTI ID:1810628

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KTH Royal Inst. of Technology, Stockholm (Sweden)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Fluid dynamics simulations of melting and crater formation at the surface of a copper cathode exposed to high plasma heat fluxes and pressure gradients are presented. The predicted deformations of the free surface and the temperature evolution inside the metal are benchmarked against previously published simulations. Despite the physical model being entirely hydrodynamic and ignoring a variety of plasma–surface interaction processes, the results are also shown to be remarkably consistent with the predictions of more advanced models, as well as experimental data. This provides a sound basis for future applications of similar models to studies of transient surface melting and droplet ejection from metallic plasma-facing components after disruptions.

View Accepted Manuscript (DOE)

Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: EUROfusion Consortium (WPPFC); Swedish Research Council; USDOE

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1810628

Journal Information:: Nuclear Materials and Energy, Journal Name: Nuclear Materials and Energy Vol. 25; ISSN 2352-1791

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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