The analytical solution of Poisson's equation, derived from the definition of vortex, has been applied to the calculations of interference velocities due to the presence of wind tunnel walls.
由涡的定义导出的向量泊桑方程的积分形式的解析解，被用于低速风洞壁引起的干扰速度的计算。
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The main contents of this dissertation are about the study of the three kinds of theoretic models and the interference of optical vortex beams.