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Numerical study on magneto-Rayleigh–Taylor instabilities for thin liner implosions on the primary test stand facility 被引量:3
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作者 Xiao-Guang Wang shun-kai sun +8 位作者 De-Long Xiao Guan-Qiong Wang Yang Zhang Shao-Tong Zhou Xiao-Dong Ren Qiang Xu Xian-Bin Huang Ning Ding Xiao-Jian Shu 《Chinese Physics B》 SCIE EI CAS CSCD 2019年第3期256-264,共9页
The thin aluminum liners with an aspect ratio R/?r 1 have been imploded on the primary test stand(PTS) facility,where R is the outer radius of the liner and ?r is the thickness. The x-ray self-emission images present ... The thin aluminum liners with an aspect ratio R/?r 1 have been imploded on the primary test stand(PTS) facility,where R is the outer radius of the liner and ?r is the thickness. The x-ray self-emission images present azimuthally correlated perturbations in the liner implosions. The experiments show that at-10 ns before the stagnation, the wavelengths of perturbation are about 0.93 mm and 1.67 mm for the small-radius and large-radius liners, respectively. We have utilized the resistive magnetohydrodynamic code PLUTO to study the development of magneto-Rayleigh–Taylor(MRT) instabilities under experimental conditions. The calculated perturbation amplitudes are consistent with the experimental observations very well. We have found that both mode coupling and long implosion distance are responsible for the more developed instabilities in the large-radius liner implosions. 展开更多
关键词 magneto-Rayleigh–Taylor instability thin liner implosion Z-PINCHES magnetohydrodynamic(MHD) PRIMARY test stand(PTS)
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