Experiments of cylindrical isentropic compression by ultrahigh magnetic field

The high Explosive Magnetic Flux Implosion Compression Generator (EMFICG) is a kind of unique high energy density dynamic technique with characters like ultrahigh pressure and low temperature rising and could be suitable as a tool of cylindrical isentropic compression. The Institute of Fluid Physics...

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Bibliographic Details
Published inEPJ Web of Conferences Vol. 94; p. 1023
Main Authors Gu, Zhuowei, Zhou, Zhongyu, Zhang, Chunbo, Tang, Xiaosong, Tong, Yanjin, Zhao, Jianheng, Sun, Chengwei
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2015
Subjects
Compression tests
Computer simulation
Experiments
Explosive compacting
Flux density
Free surfaces
Magnetic fields
Magnetic flux
Magnetohydrodynamics
Radiography
X ray flashes
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Summary:The high Explosive Magnetic Flux Implosion Compression Generator (EMFICG) is a kind of unique high energy density dynamic technique with characters like ultrahigh pressure and low temperature rising and could be suitable as a tool of cylindrical isentropic compression. The Institute of Fluid Physics, Chinese Academy of Engineering Physics (IFP, CAEP) have developed EMFICG technique and realized cylindrical isentropic compression. In the experiments, a seed magnetic field of 5–6 Tesla were built first and compressed by a stainless steel liner which is driven by high explosive. The inner free surface velocity of sample was measured by PDV. The isentropic compression of a copper sample was verified and the isentropic pressure is over 100 GPa. The cylindrical isentropic compression process has been numerical simulated by 1D MHD code and the simulation results were compared with the experiments. Compared with the transitional X-ray flash radiograph measurement, this method will probably promote the data accuracy.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/20159401023