运动水滴在球──球直流电场中的放电研究

Study on the DC Discharge of Moving Water Drops in Sphere-sphere Gap

研究了运动水滴在球－球直流电场中的放电现象，对于含有水滴的电场分布进行了计算，水滴的引入使得水滴外表面的场强跃变为无水时场强的３倍左右，从而水滴在电场中会在较低的电压下诱发电晕，比较了正负极性电压下起晕现象。为水处理技术中的混合两相体放电问题提供了依据。

The discharge phenomena of moving water drop in a sphere-sphere DC gap are studied. Electric field strength distribution in the gap containing water drop is computed using the charge simulation method, getting the result that the field strength around the water drop is hoe times as high as that without water drops. The moving water drops can produce the corona discharge mud them and reduce the corona voltage and breakdown voltage. It is also contrasted that the water drops induce corona when the positive and negative voltages are respectively applied. It also provides the foundation for the water treatment by discharge plasma.