Numerical investigation of non-local electron transport in laser-produced plasmas |
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Authors: | Dong Ya-Lin Zhao Bin and Zheng Jian |
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Institution: | CAS Key Laboratory of Basic Plasma Physics, University of Science and Technology of China, Hefei 230026, China;Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China |
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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\"arm (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. |
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Keywords: | laser plasma non-local electron
transport Fokker--Planck simulation hydrodynamic |
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