论文部分内容阅读
Gas temperature is an important basic parameter of plasma discharges.In this work the time-and-space resolved gas temperature field of an air glow discharge with water electrode is characterized by Schlieren imaging and Rayleigh scattering.From Schlieren imaging it is observed that the gas temperature field is varying along with the discharge on due to water evaporating from water surface.With rise of the discharge current the gas temperature increases with an expanding distribution mapping,as shown in Figure 1.Water evaporation increases intensely due to high gas temperature which indicates more energy transferred to the bulk water from plasma discharge.The hot water molecules transport from the discharge-water interface and affect the gas temperature field and enhance the thermal flow in both the gas and liquid phases,which accelerates the transportation of chemically reactive species from the gas zone to the bulk water.