摘要
采用交错均匀网格、全隐欧拉后差格式 ,对二维轴对称等离子体电弧进行随时间演化的数值模拟 .得到了平衡时的稳态温度场、电流场和随时间演化的气流速度场 .发现其中有周期性传播的磁流体激波 ,激波速度各点不等 ,约为 70 0～ 10 0 0m/s 。
A numerical simulation method of time evolution of two\|dimensional free burning plasma arc column is presented. The method used a rectangular crisscross grid system for space and an implicit Euler backward difference scheme for time. The stable temperature field, the electrical current field and the variation of velocity field of gas with time have been obtained. A periodic shock wave has been found to propagate in the gas. The velocity of the shock wave is about 700—1000?m/s, varying with space. This result agrees with the unstable phenomena of plasma arc columns.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第4期768-774,共7页
Acta Physica Sinica
基金
国家自然科学基金!(批准号 :19745 0 0 3 )
国家高性能计算基金!(批准号 :982 0 2 6 )
国家教育委员会留学回国人员基金
中国科学
