Simulation of Positive DC Corona Streamer Pulse Characteristics at Various Air Pressures and Humidities
The simulation of positive dc corona streamer pulse characteristics at various air pressures and humidities for a rod-plane electrode system has been investigated. A flux-corrected transport (FCT) algorithm, based on a non-uniform mesh, and a successive over-relaxation (SOR) algorithm were applied to solve the continuity equations and Poisson equation in a fluid model to produce positive streamer pulse waveforms. The values of the various coefficients for humid air, considered as a gas mixture of air and water vapor and necessary for the calculations, were estimated by linear interpolation from the values for the separate ‘gases’. The simulation results were in general agreement with the experimental ones of our previous study. The positive streamer average amplitude decreased as the pressure was reduced or the humidity was raised. The phenomenon was explained by the decreasing of the average electric field and the conductivity in the discharge channel.
positive streamer simulation fluid model pressure humidity
Xingming BIAN Jianfeng HUI Yong CHEN Liming WANG Zhicheng GUAN Mark MacAlpine
Department of Electrical Engineering, Tsinghua University, Beiijing, 100084, CHINA Graduate School a Shanxi Electric Power Corporation, Xian, 710047, CHINA Department of Electrical Engineering, Wuhan University, Wuhan, 430072, CHINA Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, CHINA
国际会议
哈尔滨
英文
591-594
2009-07-19（万方平台首次上网日期，不代表论文的发表时间）