Cylindrical isentropic compression by ultrahigh magnetic field

18th APS-SCCM; 24th AIRAPT

Gu, Zhuowei^1 ; Luo, Hao^1 ; Zhang, Hengdi^1 ; Zhao, Shichao^1 ; Tang, Xiaosong^1 ; Tong, Yanjin^1 ; Song, Zhenfei^1 ; Tan, Fuli^1 ; Zhao, Jianheng^1 ; Sun, Chengwei^1

Institute of Fluid Physics, Chinese Academy of Engineering Physics, China^1

关键词: Axial magnetic field;    Chinese academy of engineerings;    Experimental devices;    High energy densities;    Isentropic compression;    Material synthesis;    Numerical simulated;    Ultra-high magnetic fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/500/14/142018/pdf
DOI  :  10.1088/1742-6596/500/14/142018

来源: IOP

【 摘 要 】

The cylindrical isentropic compression by ultrahigh magnetic field (MC-1) is a kind of unique high energy density technique. It has characters like ultrahigh pressure and low temperature rising, and would have widely used in areas like high pressure physics, new material synthesis and ultrahigh magnetic field physics. The Institute of Fluid Physics, Chinese Academy of Engineering Physics (IFP, CAEP) has begun the experiment since 2011 and a primary experimental device had been set-up. In the experiments, a seed magnetic field of 5 Tesla were set-up first and compressed by a stainless steel liner which is driven by high explosive initiated synchronously. The internal diameter of the liner is 97 mm, and its thickness is 1.5 mm. The movement of liner was recorded optically and a typical turnaround phenomenon was observed. From the photography results the liner was compressed smoothly and evenly and its average velocity was about 5-6 km/s. In the experiment a axial magnetic field of over 1400 Tesla has been recorded. The MC-1 process was numerical simulated by 1D MHD code MC11D and the simulations are in accord with the experiments.