CAJ | 학술논문

为研究液滴变形对荷电水雾吸附细颗粒物的影响，通过对三维空间中液滴周围细颗粒物的运动方程量纲为1化，获得影响细颗粒物运动的主要参数———斯托克斯数（Stk）和库仑数（Kc），在考虑液滴变形对电场影响的基础上，建立了静电力和气动力共同作用下不同变形状态的荷电液滴周围细颗粒物运动的数值模型，通过追踪三维空间中细颗粒物的运动轨迹来描述荷电单液滴的除尘过程。结果表明：Stk 的增大能促进惯性碰撞沉积，而 Kc 的增大能促进静电沉积；液滴变形为长椭球且它的长轴与气流运动方向平行时，会削弱惯性碰撞沉积，但对静电沉积有一定促进作用，而长轴与气流运动方向垂直时，情况则完全相反；液滴变形率越大，不同角度下液滴变形对沉积的影响作用越强。
위연구액적변형대하전수무흡부세과립물적영향，통과대삼유공간중액적주위세과립물적운동방정량강위1화，획득영향세과립물운동적주요삼수———사탁극사수（Stk）화고륜수（Kc），재고필액적변형대전장영향적기출상，건립료정전력화기동력공동작용하불동변형상태적하전액적주위세과립물운동적수치모형，통과추종삼유공간중세과립물적운동궤적래묘술하전단액적적제진과정。결과표명：Stk 적증대능촉진관성팽당침적，이 Kc 적증대능촉진정전침적；액적변형위장타구차타적장축여기류운동방향평행시，회삭약관성팽당침적，단대정전침적유일정촉진작용，이장축여기류운동방향수직시，정황칙완전상반；액적변형솔월대，불동각도하액적변형대침적적영향작용월강。
The effect of charged droplet deformation on the adsorption characteristics of dust particles was investigated.By simpli-fying the motion equation of fine particles in three-dimensional space,several main non-dimensional parameters which impact par-ticles’motion were acquired:Stokes number and Coulomb number.A numerical model for the motion of dust particles in vicinity of a deformed charged droplet was proposed,where the effect of droplet deformation on electric field was considered.Dust re-moval process was described by tracking the trajectory of fine particles in three-dimensional space.Results show that increasing of Stokes number enhances the inertial impaction deposition and Coulomb number enhances the electrostatic deposition.When the major axis of elliptic droplet and the airflow direction are parallel to each other,inertial impaction deposition is weakened and elec-trostatic deposition is promoted.As the major axis of deformed droplet is perpendicular to the airflow direction,the results are completely opposite to the parallel condition.For larger droplet deformation rate,the influence of deformation on dust particles collection is stronger.