粒子沉降速度

气溶胶粒子干沉降速度的测量

The measurements of aerosol dry deposition

采用了离心力加快沉降速度，粒子的沉降速度大，均匀低速的假设条件不再满足，理论计算模型和实际情况偏差大。

Thirdly , because of the centrifugal force , particles in the magnetorheological fluid sediment at a speed faster than the assumed low and uniform speed in the theoretical sedimentation model .

用该方程求解长径比在0.1～10范围内沿轴向和垂直轴向运动的粒子的Stokes沉降速度，以及任意初始倾角高频振荡粒子沉降速度和倾角随时间的变化。

The particle Stokes sedimentation velocities along axial and perpendicular to axial are obtained by solving these equations for the particle ratio aspect from 0.1 ~ 10 . The evolution of sedimentation velocity and orientation of particle with higher oscillation frequency and arbitrary initial orientation is got .

固壁条件下多根椭圆粒子的平均沉降速度大大小于周期性壁面条件下的平均沉降速度。

The average sedimentary velocity under no-slip wall condition is largely less than that under periodic wall boundary condition .

建立了等离子体中宏观粒子的输运模型，计算了粒子沉降的加速度、速度和时间，得出了粒子收集的判据和沉降过程中提纯效应可提高很多的结论。

The transport model of macroscopic particles in plasma is introduced , and the acceleration , the velocity and the time of the descent of the particles are calculated .