一维准等熵压缩流场的反演  

Inverse integration of one-dimensional quasi-isentropic compression flow field

作　　者：薛全喜[1,2] 江少恩[1] 王哲斌[1] 章欢[1] 叶锡生[2] 张永生[2] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,绵阳621900 [2]西北核技术研究所激光与物质相互作用国家重点实验室,西安710024

出　　处：《核聚变与等离子体物理》2014年第1期17-21,共5页Nuclear Fusion and Plasma Physics

基　　金：国家重点实验室基金项目(SKLLIM1006-01);国家重点实验室基金项目(SKLLIM1006-01);国家自然科学基金项目(11005097);国家自然科学基金项目(11005097);中国工程物理研究院科学技术发展基金资助课题(2010A0102003)

摘　　要：根据反向积分原理编写了流场反演程序,并开展了程序验证计算。在反演区域内,由临界面速度反演出与辐射流体力学程序MULTI计算结果几乎一致的结果;由Saturn加速器上实验测试的单个样品后自由面速度反演出了加载压强历史、多种厚度样品后自由面粒子速度历史等信息,与文献对比发现,反演结果与由加速器工作电流推出结果、WONDY程序计算结果、实验测试结果相吻合。本工作为即将开展的激光驱动准等熵压缩实验奠定了技术基础。Inversion codes were completed based on principles of backward integration, and simulations were performed by the codes. The results inverted from the particle velocities of interface are in consistent with the ones from MULTI. Moreover, the loading pressure curves, free surface velocities inverted from some free surface velocities are the same as the experiments results obtained from Saturn accelerator, and those both obtained by WONDY codes, and deduced from current shapes of the accelerator. This work can provide important supports for laser-driven ramp compression experiments in future.

关 键 词：准等熵压缩 流场 反向积分 反演 

分 类 号：O532[理学—等离子体物理] TN249[理学—物理]