The Richtmyer-Meshkov instability of a double-layer interface in convergent geometry with magnetohydrodynamics
KAUST DepartmentFluid and Plasma Simulation Group (FPS)
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant NumberURF/1/2162-01
Online Publication Date2018-04-13
Print Publication Date2018-07
Permanent link to this recordhttp://hdl.handle.net/10754/627547
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AbstractThe interaction between a converging cylindrical shock and double density interfaces in the presence of a saddle magnetic field is numerically investigated within the framework of ideal magnetohydrodynamics. Three fluids of differing densities are initially separated by the two perturbed cylindrical interfaces. The initial incident converging shock is generated from a Riemann problem upstream of the first interface. The effect of the magnetic field on the instabilities is studied through varying the field strength. It shows that the Richtmyer-Meshkov and Rayleigh-Taylor instabilities are mitigated by the field, however, the extent of the suppression varies on the interface which leads to non-axisymmetric growth of the perturbations. The degree of asymmetry of the interfacial growth rate is increased when the seed field strength is increased.
CitationLi Y, Samtaney R, Wheatley V (2018) The Richtmyer-Meshkov instability of a double-layer interface in convergent geometry with magnetohydrodynamics. Matter and Radiation at Extremes. Available: http://dx.doi.org/10.1016/j.mre.2018.01.003.
SponsorsThis work was supported by the KAUST Office of Sponsored Research under Award No. URF/1/2162-01.
JournalMatter and Radiation at Extremes
Except where otherwise noted, this item's license is described as © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/