高电压技术2016，Vol.42Issue(3)：769-774,6.DOI:10.13336/j.1003-6520.hve.20160308017
表面介质阻挡放电等离子体诱导流场相似准则及应用
Similarity Criteria of Surface Dielectric Barrier Discharge Plasma Induced Flow-field and Its Application
摘要
Abstract
According to the aerodynamics momentum and energy equations, the similarity criteria of body force and releasing heat induced by surface dielectric barrier discharge plasma flow control were studied on the basis of the similarity theory.The body force similarity criterion is essentially Reynolds number similarity which has three forms according to the experimental conditions.When the air is quiescent, the Reynolds number can be obtained using the maximal velocity and jet half height of induced jet.For free stream, the force unit length similarity based on the force unit length, free stream velocity, and kinetic viscosity coefficient can be used, or the velocity-modified Reynolds number similarity can be applied that the Reynolds number in quiescent air is modified by the maximal velocity of induced jet and free stream velocity.The releasing heat similarity criterion is dimensionless perturbation pressure similarity.The velocity-modified Reynolds number similarity is used to simulate the S1223 airfoil plasma flow control at altitude 20 km.It is found that when the angle of attack is positive and the Reynolds number is low, the lift coefficient will increase by about 10％～55％ even if the angle of attack is quite high.The flow fields on up and down surfaces of airfoil are modified by plasma.But when the free stream Reynolds number is high, plasma acts weakly.关键词
表面介质阻挡放电/体积力/放热/诱导流场/相似准则/等离子体Key words
surface dielectric barrier discharge/body force/releasing heat/induced flowfield/similarity criterion/plasma引用本文复制引用
车学科,聂万胜,田希晖,陈庆亚,姜家文..表面介质阻挡放电等离子体诱导流场相似准则及应用[J].高电压技术,2016,42(3):769-774,6.基金项目
国家自然科学基金(11205244).Project supported by National Natural Science Foundation of China (11205244). （11205244）
