Hydrodynamic models and schemes for fast ignition

被引:10
作者
Hain, S
Mulser, P
Cornolti, F
Opower, H
机构
[1] Tech Univ Darmstadt, Inst Angew Phys, D-64289 Darmstadt, Germany
[2] Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy
[3] INFM, I-56100 Pisa, Italy
[4] Deutsch Zentrum Luft & Raumfahrt, Inst Tech Phys, D-70569 Stuttgart, Germany
关键词
D O I
10.1017/S0263034699172100
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this paper, we want to discuss different hydrodynamic schemes for fast ignition and some of their basic effects. Relativistic hydrodynamics and a covariant generalized Ohm's law are presented. Matter perforation (hole boring) by an intense laser pulse is investigated by 2D numerical simulations and a simple formula for the perforation speed is derived. Furthermore, we study macroparticle acceleration by an intense laser beam and the possibility to provide an energetic and massive projectile for ballistic ignition. The dynamics of ignition of a precompressed D-T mixture is illustrated by numerical simulations in planar 2D geometry using direct laser irradiation and macroparticle impact as external drivers. Electron heat conduction is found to be responsible for an efficient burn wave propagation which prevents the hot gas bubble of burning fuel from deflagrating into vacuum.
引用
收藏
页码:245 / 263
页数:19
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