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应用ANSYS软件对氩、氦等离子体电弧进行了数值模拟。通过前处理、求解、后处理,分别模拟了氩弧和氦弧的电弧温度分布。通过比较氩弧和氦弧温度场发现,氦弧的径向距离明显收缩。模拟结果表明:氩弧温度场分布呈钟罩形,而氦弧呈球形;氦弧的最高温度小于氩弧,但氦弧的平均温度高于氩弧。等离子体的热力学与输运性质不同是造成以上差异的主要原因。
Application of ANSYS software to argon, helium plasma arc numerical simulation. The pre-treatment, solution and post-treatment were used to simulate the arc temperature distribution of argon arc and helium arc respectively. By comparing the temperature field of the argon arc and the helium arc, it is found that the radial distance of the helium arc significantly shrinks. The simulation results show that the temperature distribution of argon arc is bell-shaped while the helium arc is spherical. The maximum temperature of helium arc is less than that of argon arc, but the average temperature of helium arc is higher than that of argon arc. The difference between the thermodynamic and transport properties of plasma is the main reason for the above differences.