The Richtmyer-Meshkov instability of a double-layer interface in convergent geometry with magnetohydrodynamics
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ArticleKAUST Department
Fluid and Plasma Simulation Group (FPS)Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant Number
URF/1/2162-01Date
2018-04-13Online Publication Date
2018-04-13Print Publication Date
2018-07Permanent link to this record
http://hdl.handle.net/10754/627547
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The 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.Citation
Li 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.Sponsors
This work was supported by the KAUST Office of Sponsored Research under Award No. URF/1/2162-01.Publisher
AIP PublishingJournal
Matter and Radiation at ExtremesAdditional Links
http://www.sciencedirect.com/science/article/pii/S2468080X17301103ae974a485f413a2113503eed53cd6c53
10.1016/j.mre.2018.01.003
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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/