Numer ical Simulation of the He-Xe Discharge in an Plasma Display Panel

本文先建構二維多流體模型來描述電漿顯示 面板放電槽之氦氙氣體放電，此放電模型包含3 個 一階積矩方程、帕松方程、及激發態粒子方程。我 們以雙曲線守衡律來解此模型，使用的算則為 WENO2 算則。我們並對方程式源項之處理有所說 明。主要算例分為兩類：對向型放電及面放射型放 電。算例中亦求取放電槽之電漿輝光放電參數， 如：電子密度、溫度、離子密度、激發態粒子密度 之時變解。A numerical analysis of the discharge plasma, which forms in an ac plasma display panel cell, has been made using two dimensional, multi-fluid model equations to investigate the physics of He-Xe discharge. The self-consistent model is based on a three moments equation, coupled with Poisson’s equation and an excited particle equation. The governing equations are formulated in conservation law form, and high resolution WENO scheme is used to solve this model. We also describe the details of the chemical reactions for the source term. The time-dependent distributions of electron density, electron temperature, ion density and excited particles density are obtained during the discharge period in a cross type and surface type ac plasma display panel (PDP) cell