论文部分内容阅读
以经典的圆柱绕流为例，通过对建立的颗粒群模型进行数值模拟和应用激光多普勒测速技术，从理论和实验上研究了静电喷粉的沉积特性，发现颗粒荷电对颗粒运动特性有明显的影响；在相同的荷质比时，颗粒荷电的影响随颗粒尺寸的增加而增加，影响的结果是增加了颗粒向农作物沉积的趋势。数值模拟和实验结果的对比表明，颗粒群模型合理地描述了荷电颗粒的运动特性。
Taking the classical flow around the cylinder as an example, the deposition characteristics of the electrostatic duster were theoretically and experimentally studied through numerical simulation of the established particle swarm optimization and the application of laser Doppler velocimetry. The effect of particle charge increases with the increase of particle size at the same charge-to-mass ratio. As a result, the effect of particle charge on the crop is increased. The comparison between numerical simulation and experimental results shows that particle swarm model reasonably describes the kinetic characteristics of charged particles.