基于ANSYS/Fluent的主喷嘴外流场分析  

Analysis of the External Flow Field of the Main Nozzle Based on ANSYS/Fluent

作　　者：刘育[1] 王益轩[1] 姚超[1] 刘婷婷[1] 王瑶[1] 

机构地区：[1]西安工程大学机电工程学院,西安710048

出　　处：《纺织器材》2016年第4期5-10,共6页Textile Accessories

基　　金：陕西省科技攻关项目(2015GY137)

摘　　要：为获得喷气织机稳定的引纬气流,提高喷气织造的效果,根据主喷嘴的结构对喷气织机用主喷嘴的结构和喷气引纬系统进行优化,通过建立三维模型并用ANSYS/Fluent进行仿真,对不同主喷嘴出口直径和速度下的自由紊动射流流场进行了详尽的图形分析和数值模拟计算。指出:主喷嘴采用直径为4mm^6mm的小喷口,可获得更加稳定的引纬气流;主喷嘴外流场的射流喷口直径与异形筘的安装位置和气流槽高度相关;数值模拟与理论解吻合较好,可为后续研究提供指导。To obtain a stable weft-in flow on the air-jet loom, and to improve the effect of the air- jet weaving,according to the structure of main nozzle of air-jet loom,the jet weft-in system is optimized. Through the establishment of 3D model and ANSYS/Fluent simulation of different primary nozzle exit diameter and velocity of free turbulent dynamic jet flow field were discussed in details with graphics analysis and numerical simulation. It is pointed out that the main nozzle with a diameter of 4 mm^6 mm can get more stability of weft-in flow. The main nozzle diame- ter of the outside flow and the installation position of the profiled reed and the airflow grooves are highly correlated. The numerical simulation and theoretical solution are in good agreement, providing guidance for the follow-up study.

关 键 词：喷气织机 引纬 主喷嘴 辅喷嘴 喷口 直径 气流 射流 紊流 ANSYS/Fluent 

分 类 号：TS103.33[轻工技术与工程—纺织工程]