Numerical Simulation on Evolution of Ablation Plasma Generated by Strong Laser

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2007, Vol. 24 ›› Issue (6): 667-672.

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Numerical Simulation on Evolution of Ablation Plasma Generated by Strong Laser

TONG Huifeng^1,2, TANG Zhiping², ZHANG Ling²

1. Institute of Fluid Physics, CAEP, Mianyang 621900, China;
2. CAS Key Laboratory for Mechanical Behavior and Design of Materials, Department of Mechanics and Mechanical Engineering, University of Science and Technology of China, Hefei 230026, China

Received:2005-12-02 Revised:2007-03-27 Online:2007-11-25 Published:2007-11-25

Abstract

Abstract: A general Godunov finite difference scheme—WENO(Weighted Essentially Non-Oscillatory) scheme with fifth-order accuracy is used to calculate 2-dimensional axis symmetrical laser-supported plasma flow field under laser ablated solid target,considering ionization degree of plasma and the interaction and coupling between laser beam and plasma.Evolution of the ablation plasma due to the interaction between laser and solid target is obtained.The simulation shows that the laser beam is strong absorbed by plasma on target surface,and the velocity of LSD(Laser Supported Detonation) wave is half of the ideal LSD derived with C-J detonation theory.

Key words: finite difference, numerical simulation, laser-supported plasma flow field

CLC Number:

O381
O43212

TONG Huifeng, TANG Zhiping, ZHANG Ling. Numerical Simulation on Evolution of Ablation Plasma Generated by Strong Laser[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2007, 24(6): 667-672.

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Numerical Simulation on Evolution of Ablation Plasma Generated by Strong Laser

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