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  4. Numerical Simulation of the He-Xe Discharge in an Plasma Display Panel
 
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Numerical Simulation of the He-Xe Discharge in an Plasma Display Panel

Date Issued
2002-07-31
Date
2002-07-31
Author(s)
楊照彥
DOI
902212E002239
URI
http://ntur.lib.ntu.edu.tw//handle/246246/21656
Abstract
Abstract In this study, a numerical simulation of the He-Xe gas discharge in an ac-type plasma display panel cell has been made by using two dimensional, multifluid equations. This model is based on a three-moments equation of electron and ion transport, coupled with Poisson’s equation and excited particle equations. From the solutions of the time-dependent discharge parameters, we can make a qualitative description of this periodic discharge behavior. Furthermore, we discuss the UV light efficiency of the simulation, explain the emission percentage of various kinds of excited state species, and the energy distribution on different particles. In our result, due to that above 90% of the supplying energy is taken by electrons, the whole discharge behavior is dominated by electrons. The UV production efficiency of this simulation is 3.11%, which is rather low. This is due to the difference of the chemical reaction rate constant itself, and the fact that most of the Xe*(3 P2,3 P1) particles keep their original state without emitting photo energy during half period. Numerically, a high resolution WENO2 scheme is used to solve this model which is formulated in conservation law form.
Publisher
臺北市:國立臺灣大學應用力學研究所
Type
report
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