【作者】 谷卓伟； 罗浩； 唐小松； 张恒第； 赵士操； 仝延锦； 宋振飞； 赵剑衡； 孙承纬；

【Author】 Gu Zhuo-wei Luo Hao Tang Xiao-song Zhang Heng-di Zhao Shi-chao Tong Yan-jin Song Zhen-fei Zhao Jian-heng Sun Cheng-wei Institute of Fluid Physics,Chinese Academy of Engineering Physics,P.O.Box 919-113,Mianyang,Sichuan 621900,China

【机构】 中国工程物理研究院流体物理研究所；

【摘要】 炸药柱面内爆磁通量压缩实验技术具有加载压力高、加载过程温升低及样品体积大等特点,是一种先进的高能量密度加载实验技术,在材料高压物性、新材料高压合成、及超强磁场下的凝聚态物理等多个领域都具有广阔的应用前景。初步的数值模拟结果表明,与柱面内爆冲击压缩相比,利用这一实验技术可以有效实现柱面等熵压缩。目前,中物院流体物理研究所在国内率先开展了这一方面的实验研究工作,并取得了阶段性的研究成果。研制的单级实验装置获得了超过1400 Tesla的超高脉冲磁场,这一技术指标达到该类型装置的世界先进水平。对薄壁套筒内爆压缩过程进行了光学观测,获得了套筒运动的有效实验结果,并成功观测到了薄壁套筒内爆压缩过程中的不稳定性发展过程。初步的数值模拟研究表明,利用我们发展的一维爆轰磁流体力学编码可以对这一实验过程进行有效的数值模拟。更多还原

【Abstract】 The technique of magnetic flux compression by explosive cylindrical implosion(MC-1) has Characters like high pressure,low temperature rising and big sample volume,and is a kind of advanced high energy density loading technique,and will have a wide application in areas like high pressure physics, new material synthesis and ultrahigh magnetic field physics.The primary numerical simulations show that the isentropic compression could be realized by this technique.Now,the institute of fluid physics,Chinese academy of engineering physics(IFP,CAEP) has begun the experimental researching on this technique domestically.The MC-1 set-up from IFP has obtained a pulsed ultrahigh magnetic field over 1400 Tesla which is in a high level in this field.The optical measurements on the cylinder compression process were conducted and the instabilities of cylinders during the driven process were recorded.The numerical simulation on this process has been conducted by one-dimensional magnetic hydrodynamic code.更多还原