Numerical Model of an Air-jet Loom Main Nozzle for Drag Forces Evaluation
Numerical Model of an Air-jet Loom Main Nozzle for Drag Forces Evaluation
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DOI：
10.1177/0040517508096223
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发表时间：
2009-07
影响因子：
2.3
通讯作者：
G. Belforte;G. Mattiazzo;V. Viktorov;C. Visconte
中科院分区：
文献类型：
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作者：
G. Belforte;G. Mattiazzo;V. Viktorov;C. Visconte
通过在商用计算流体动力学 (CFD) 代码 Fluent 中实现的二维模型，对喷气织机主喷嘴内的流场进行了数值研究。为了确定哪种物理模型可以更好地预测喷嘴行为，对基本几何结构进行了初步模拟，改变了流动模型并将结果与可用的实验数据进行了比较。完成模型设置后，在各种几何配置上进行了旨在评估纬纱上的曳力的模拟；特别是，评估了加速管长度、形状和尺寸对曳力的影响。结果为未来的原型设计和实验提供了一些指导。
The flow field inside an air-jet loom main nozzle is studied numerically, by means of a two-dimensional model implemented in the commercial computational fluid dynamics (CFD) code Fluent. In order to determine which physical model could allow a better prediction of the nozzle behavior, preliminary simulations were carried out on a basic geometry configuration, changing flow models and comparing results with available experimental data. Having done the model setup, simulations aimed at evaluating drag force on the weft yarn were performed on various geometry configurations; in particular, the influence of acceleration tube length, shape and size on drag force was evaluated. Results gave some guidelines for future prototyping and experimentation.