摘要
利用软件Fluent对气流成网机输送风道内的三维流场进行数值计算,由仿真模拟的结果分析流场内的速度特征,以期改善气流成网机的成网均匀性。结果表明:斜喂入式和上喂入式两种模型风道中气流场的整体分布基本一致,而上喂入式模型的结构能够使气流吹出时铺满整个工作宽度;在其他参数不变的条件下,随着气流初始速度的增加或入口尺寸的增大,出口处的气流分布逐渐均匀;当上喂入式模型入口尺寸为100 mm、初始速度为25 m/s时,出口处气流能以14 m/s左右的速度稳定均匀地铺满整个工作宽度并呈矩形吹出,使成网更均匀。
The software Fluent was used to numerically calculate the three-dimensional flow field in the conveying duct of the airflow netting machine,and the velocity characteristics in the flow field were analyzed from the simulation results in order to improve the uniformity of the airflow netting machine.The results showed that the overall distribution of airflow field in the air duct of the diagonal feed model and the upper feed model was basically the same,while the structure of the upper feed model could make the airflow cover the entire working width when the air blew out.When the conditions of other parameters were unchanged,the flow distribution at the outlet was gradually uniform with the increase of the initial velocity or the increase of the inlet size.When the inlet size of the upper feed model was 100 mm and the initial speed was 25 m/s,the airflow at the outlet could spread evenly and stably across the entire working width at a speed of about 14 m/s and showed a rectangular blowing out,which could make the mesh more uniform.
作者
李笑
杨建成
何浩浩
王慧勇
Li Xiao;Yang Jiancheng;He Haohao;Wang Huiyong(School of Mechanical Engineering,Tiangong University,Tianjin 300387,China;Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology,Tianjin 300387,China;Experimental Teaching Center of Virtual Simulation of Machinery Basis and Textile Equipment Design,Tianjin 300387,China)
出处
《产业用纺织品》
2021年第2期59-65,共7页
Technical Textiles
