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LULI2000 - Morphology of the magnetized Rayleigh-Taylor instability (M. Manuel)

The proposed work aims to investigate the effects of a background magnetic field on Rayleigh-Taylor (RT) evolution and morphology. RT is heavily studied as it is relevant to many physical systems including inertial fusion implosions, core-collapse supernovae, the interaction of shock waves and interstellar clouds, and in shells of supernova remnants, such as the Crab Nebula. While the RT instability is heavily studied experimentally to verify analytical and computational modelling capabilities under various HED conditions, no experimental work has demonstrated the effects of a background B-field on RT evolution. We will use the already successful blast-wave-driven RT platform in conjunction with the pulsed-power system to generate B-fields of order 15T. The presence of the B-field is predicted to alter the morphology of RT growth due to the additional magnetic tension. These changes in spike evolution depend on the orientation of the B-field relative to the interface and the wave-vector of the perturbation. The flexibility and present diagnostic capabilities at LULI provide a robust environment to explore multiple B-field and perturbation geometries. The LULI facility offers an ideal opportunity to study these effects for the first time and successful implementation of this platform will open new avenues of research in previously unstudied HED physics.

LULI2000 - S45-47/2018