Investigation of convergent Richtmyer-Meshkov instability at tin/xenon interface with pulsed magnetic driven imploding

• 来源期刊: 中国物理B（英文版）
• 关键词: Richtmyer-Meshkov instability pulsed power driver convergent shock wave
• 年，卷（期）: 2019,（4）
• 页码范围: 247-253
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1056/28/4/044702

摘要

The Richtmyer-Meshkov instability at the interface of solid state tin material and xenon gases under cylinder geometry is studied in this paper.The experiments were conducted at FP-1 facility in Institute of Fluid Physics,China Academy of Engineering Physics (CAEP).The FP-1 facility is a pulsed power driver which could generate high amplitude magnetic field to drive metal liner imploding.Convergent shock wave was generated by impacting a magnetic-driven aluminium liner onto a inner mounted tin liner.The convergent evolution of the disturbance pre-machined onto the tin liner's inner surface was diagnosed by x-radiography.The spike amplitudes were derived from x-ray frames and were compared with linear theory.An analytical model containing material strength effect was derived and matched well to the experimental results.This sensibility of the disturbance evolution to material strength property shines light to the application of Richtmyer-Meshkov instability to infer material strength.