Laser-produced blast wave and numerical simulation using the FLASH code

Author:

FARLEY D.R.,SHIGEMORI K.,AZECHI H.

Abstract

Two-dimensional (2D) FLASH simulations were run with Spitzer-Härm conductivity on and off in an attempt to simulate a laser-produced blast wave. Dissociation, ionization, recombination, and radiative cooling were not included. An initial Gaussian temperature profile with T0 = 120 eV and spot radius r0 = 25 μm was used assuming 1 μm thickness of the CH disk is ablated into the background nitrogen gas. Evolution of the blast wave differs slightly between the cases of Spitzer-Härm on and off, and neither case matches well with experiment. Due to the high temperatures involved, a thermal wave should be expected such that the Spitzer-Härm conductivity on case is more likely. A simulation run with an initial temperature of ∼ 4 keV might match better with experiment.

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics

Reference18 articles.

1. Post, D.E. , Jensen, R.V. , Tarter, C.B. , Grasberger, W.H. & Lokke, W.A. (1977).Atomic Data Nuclear Data Tables 20,397–439.

2. Ali, A.W. & McLean, E.A. (1985).Electron density and temperature in the photoionized background gas(N2) surrounding a laser-produced plasma.J. Quant. Spect. Radiat. Trans. 33,381–390.

3. Zhang, S. , Zabusky, N.J. & Nishihara, K. (2003).Vortex structures and turbulence emerging in a supernova 1987aconfiguration: interaction of “complex” blast waves andcylindrical/spherical bubbles.Laser Part. Beams 21,471–477.

4. Landau, L.D. & Lifshitz, E.M. (1987).A strong explosion. InFluid Mechanics( Sykes, J.B. & Reid, W.H. , Eds.),2nd Edition, pp.403–406.New York:Pergamon Press.

5. Giuliani, J.L., Jr. , Mulbrandon, M. & Hyman, E. (1989).Numerical simulation of laser-target interaction and blast waveformation.Phys. Fluids B 1,1463–1476.

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3