CAJ | 학술논문

为深入研究网眼罗拉型集聚纺系统中纤维须条在流场作用下的运动规律,建立了集聚区域的计算流体动力学(CFD)模型,并运用Fluent软件对该区域的流场进行数值计算,然后建立了纤维微元在气流场中的动力学模型,利用自编的Matlab程序对其进行求解,最后获得了纤维在集聚区的运动轨迹.研究结果表明不同初始位置的纤维运动轨迹能够反映须条的集聚规律;气流的横向作用力能够使须条在集聚方向上发生集聚;上层纤维较网眼罗拉表面的纤维集聚速度快;y轴向气流力使须条贴伏在网眼罗拉表面.
위심입연구망안라랍형집취방계통중섬유수조재류장작용하적운동규률,건립료집취구역적계산류체동역학(CFD)모형,병운용Fluent연건대해구역적류장진행수치계산,연후건립료섬유미원재기류장중적동역학모형,이용자편적Matlab정서대기진행구해,최후획득료섬유재집취구적운동궤적.연구결과표명불동초시위치적섬유운동궤적능구반영수조적집취규률;기류적횡향작용력능구사수조재집취방향상발생집취;상층섬유교망안라랍표면적섬유집취속도쾌;y축향기류력사수조첩복재망안라랍표면.
To study the motion rule of fiber bundle in flow field of compact spinning system with perforated drum, the computational fluid dynamics (CFD) model was established and resolved by numerical computation using Fluent software. And the dynamic model of the infinitesimal element of a fiber in flow field was established. The dynamic model was solved by utilizing the self-designed Matlab program, and the motion trajectory of the fiber was gained in the flow field. The results indicate that the condensing principle can be reflected by the motion trajectories of fibers with different initial positions. The convergence of fiber bundle in the condensing direction is produced by the transverse air force. The condensing velocity of the fiber on the upper layer is faster than that of those close to the surface of the perforated drum. The force action on the fiber in y direction made the fiber bundle close to the surface of the perforated drum.