| 集聚纺集聚区气流流动规律及集聚效果的数值研究 |
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| 引用本文： | 杨建平,裴泽光,汪军. 集聚纺集聚区气流流动规律及集聚效果的数值研究[J]. 东华大学学报(自然科学版), 2011, 37(3): 310-316,326 |
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| 作者姓名： | 杨建平 裴泽光 汪军 |
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| 作者单位： | 东华大学纺织面料技术教育部重点实验室,上海,201620 |
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| 基金项目： | 国家自然科学基金资助项目(51076026); 教育部科学技术研究重点资助项目(108057) |
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| 摘 要： | 为探讨网格圈式集聚纺集聚区气流流动规律及气流对须条的集聚效果,建立计算流体动力学(CFD)模型,对集聚纺集聚区的气流流动进行了三维数值研究,并根据计算结果就气流对须条进行集聚的机理、几个重要的结构参数及工艺参数(如吸风槽倾角、吸风槽形状、吸风槽宽度及集聚负压)对集聚效果的影响进行了分析.研究结果表明:集聚区的气流静压值低于外界的大气压力,集聚区外围越靠近吸风槽,压力越小,气流速度越高.由于内外压力差和速度差的存在,从前罗拉钳口输出的纤维须条向吸风槽汇聚,宽度逐渐变窄.吸风槽倾角为10°时有利于集聚效果的提高;弧线型和折线型吸风槽的集聚效果优于直线型吸风槽;集聚负压在一定范围内的变化对集聚效果的影响不明显;增大吸风槽宽度有利于气流对须条的集聚.
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| 关 键 词： | 集聚纺 吸风槽 气流 参数 数值研究 |
Numerical Investigation on the Airflow Characteristics and Condensing Effect in the Condensing Zone of Compact Spinning |
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| YANG Jian-ping,PEI Ze-guang,WANG Jun. Numerical Investigation on the Airflow Characteristics and Condensing Effect in the Condensing Zone of Compact Spinning[J]. Journal of Donghua University, 2011, 37(3): 310-316,326 |
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| Authors: | YANG Jian-ping PEI Ze-guang WANG Jun |
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| Affiliation: | YANG Jian-ping,PEI Ze-guang,WANG Jun(Key laboratory of Textile Science & Technology,Ministry of Education,Donghua University,Shanghai 201620,China) |
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| Abstract: | To investigate the airflow characteristics and the condensing effect of the airflow on the strand in the condensing zone in the lattice-type compact spinning,a three-dimensional computational fluid dynamics(CFD) model has been developed to simulate the airflow characteristics in the condensing zone in compact spinning.According to the simulation results,the condensing principle of the airflow on the strand,together with the condensing effect of some important structure and process parameters(such as the inc... |
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| Keywords: | compact spinning suction slot airflow parameter numerical investigation |
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