Experiments to Produce a Hydrodynamically Unstable, Spherically Diverging System of Relevance to Instabilities in Supernovae
Experiments to Produce a Hydrodynamically Unstable, Spherically Diverging System of Relevance to Instabilities in Supernovae
复制标题
产生与超新星不稳定性相关的流体动力学不稳定、球形发散系统的实验
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
John W. Grove
中科院分区：
文献类型：
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作者：
R. P. Drake;H. Robey;O. Hurricane;Yongmin Zhang;B. Remington;J. Knauer;J. Glimm;D. Arnett;J. Kane;K. Budil;John W. Grove
第一个球形发散，流体动力学不稳定的实验室实验有关的超新星（SNe）的结果报告。实验是通过使用激光辐射来爆炸半球形胶囊来完成的，该胶囊具有扰动的外表面，其嵌入在低密度泡沫体的体积内。这个实验的演化，就像超新星的演化一样，可以用欧拉方程很好地描述。我们已经比较了实验结果的二维模拟使用辐射流体动力学代码和纯流体动力学代码与前跟踪。
Results of the first spherically diverging, hydrodynamically unstable laboratory experiments of relevance to supernovae (SNe) are reported. The experiments are accomplished by using laser radiation to explode a hemispherical capsule, having a perturbed outer surface, which is embedded within a volume of low-density foam. The evolution of the experiment, like that of a supernova, is well described by the Euler equations. We have compared the experimental results to those of two-dimensional simulations using both a radiation-hydrodynamics code and a pure hydrodynamics code with front tracking.