Numerical investigation of non-local electron transport in laser-produced plasmas
Dong Ya-Lin(董亚林)a)b), Zhao Bin(赵斌)a)b), and Zheng Jian(郑坚)a)b)†
a CAS Key Laboratory of Basic Plasma Physics, University of Science and Technology of China, Hefei 230026, China; b Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
Abstract Non-local electron transport in laser-produced plasmas under inertial confinement fusion (ICF) conditions is studied based on Fokker-Planck (FP) and hydrodynamic simulations. A comparison between the classical Spitzer--H?rm (SH) transport model and non-local transport models has been made. The result shows that among those non-local models the Epperlein and Short (ES) model of heat flux is in reasonable agreement with the FP simulation in overdense region. However, the non-local models are invalid in the hot underdense plasmas. Hydrodynamic simulation is performed with the flux limiting model and the non-local model, separately. The simulation results show that in the underdense region of the laser-produced plasmas the temperature given by the flux limiting model is significantly higher than that given with the non-local model.
Fund: Project supported by the National Natural
Science Foundation of China (Grant Nos~10375064, 10575102,
10625523), and the National High Technology Inertial Confinement
Fusion Foundation of China.
Cite this article:
Dong Ya-Lin(董亚林), Zhao Bin(赵斌), and Zheng Jian(郑坚) Numerical investigation of non-local electron transport in laser-produced plasmas 2007 Chinese Physics 16 3742
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