Numerical simulation of the internal flow field of a new main nozzle in an air-jet loom based on Fluent
Numerical simulation of the internal flow field of a new main nozzle in an air-jet loom based on Fluent
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基于Fluent的喷气织机新型主喷嘴内部流场数值模拟
DOI：
10.1177/0040517515569522
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发表时间：
2015-02
影响因子：
2.3
通讯作者：
Wang Tengzhong
中科院分区：
文献类型：
--
作者：
chen liang;Feng Zhihua;Wang Tengzhong
为了降低喷气织机引纬过程中的湍流影响和回流，设计了一种由两个喷嘴针串联而成的新型主喷嘴。利用计算流体力学技术建立了三维模型，对常用喷管和新型喷管的内部流场进行了数值研究。结果表明，不同的供气压力可以有效地控制湍流强度，合理地将供气压力分配到新喷嘴的两个入口，可以消除高供气压力在上游通道产生的回流现象。在得到内部气流速度分布的基础上，对纬纱所受的阻力进行了计算，结果表明，改进后的阻力可以得到改善。此外，数值模拟还可以为今后的样机和实验提供一定的指导。
In order to decrease the turbulence influence and the backflow during weft insertion in an air-jet loom, a new main nozzle composed of two nozzle needles connected in series is designed. The internal flow fields of the commonly used nozzle and the new nozzle are numerically studied by means of a three-dimensional model implemented by the computational fluid dynamics technique. It is observed that the turbulence strength is effectively controlled with different air supply pressures and the backflow phenomenon at the upstream passage generated by high supply pressures can be eliminated when the supply pressure is reasonably distributed into two inlets of the new nozzle. The drag force exerted on the weft yarn is calculated when the velocity distribution of the internal airflow is obtained, and results show that the drag force can be improved. Also, the numerical simulation can give some guidelines for future prototyping and experiments.
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影响因子：
2.3
作者：
Mahmoud Salama;M. Mohamed
通讯作者：
Mahmoud Salama;M. Mohamed
DOI：
--
发表时间：
2009-04
期刊：
Journal of Xi'an Polytechnic University
影响因子：
--
作者：
Hai-Shun Liang;Guangqing Wang;D. Shen;Kun Yang;Feng Liu;Jun-ning Li
通讯作者：
Hai-Shun Liang;Guangqing Wang;D. Shen;Kun Yang;Feng Liu;Jun-ning Li
影响因子：
2.3
作者：
M. Mohamed;Mahmoud Salama
通讯作者：
M. Mohamed;Mahmoud Salama
影响因子：
2.3
作者：
G. Belforte;G. Mattiazzo;V. Viktorov;C. Visconte
通讯作者：
G. Belforte;G. Mattiazzo;V. Viktorov;C. Visconte