Akdim M R, Goedheer W J
FOM Institute for Plasmaphysics Rijnhuizen, Association EURATOM-FOM, P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands.
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 May;67(5 Pt 2):056405. doi: 10.1103/PhysRevE.67.056405. Epub 2003 May 23.
A two-dimensional hydrodynamic model for a dusty argon plasma in which the plasma and dust parameters are solved self-consistently has been supplemented with a separate dust particle tracing module to study the behavior of dust vortices. These coherent vortices appear in plasma crystal experiments performed under microgravity conditions. The nonconservative total force exerted by the discharge on the dust particles is responsible for the generation of the vortices. The contribution of the thermophoretic force driven by the gas temperature gradient plays an insignificant role in the generation of the vortices, even when the gas heating via the dust particles is taken into account. The forces related to the electric field, including the ion drag force, are dominant.
一个二维流体动力学模型用于研究含尘氩等离子体，其中等离子体和尘埃参数是自洽求解的，并补充了一个单独的尘埃粒子追踪模块来研究尘埃涡旋的行为。这些相干涡旋出现在微重力条件下进行的等离子体晶体实验中。放电对尘埃粒子施加的非保守合力是涡旋产生的原因。即使考虑了通过尘埃粒子的气体加热，由气体温度梯度驱动的热泳力在涡旋产生中所起的作用也微不足道。与电场相关的力，包括离子拖曳力，是主导因素。
