摘要
为探究凝聚槽类型对转杯内气流场的影响,采用Solidworks建立三维转杯纺纱通道的几何模型,应用Fluent流体计算软件对纺纱通道内气流场进行数值模拟,并根据计算结果分析纺纱通道内气流场的分布,包括压力场分布和速度场分布。模拟结果表明:以U型槽为例,转杯内静压绝大部分处于-8 287.91^-2 370.92 Pa之间,输棉通道出口与凝聚槽交汇处存在一小部分高压区;输棉通道内的气流呈加速运动,并在出口处达到最大值,约为220 m/s;在相同工艺条件下,V型槽内的速度与静压均高于U型槽,凝聚须条纤维间抱合力较U型槽更紧密,捻度更易于传递,所纺纱线强度更高。
In order to explore the impact of cohesion within the rotor slot type flow field, Solidworks was used to build three-dimensional geometric model of rotor spinning channel, and the Fluent computational software was used to numerical simulate the fluid flow field within the spinning channel. According to the calculation results, the distribution of flow field including pressure distribution and velocity field in the spinning channel were analyzed. The simulation results are shown taking the U-shaped groove as an example. The results show that the vast majority in static pressure within the rotor is ranged from -8 287.91 Pa to -2 370.92 Pa, and a small part of the high-pressure zone exists in the outlet slot interchange and cohesion of cotton output channel. Cotton within the transport channel airflow was accelerated, and reaches a maximum value of about 220 m/s at the outlet. Under the same conditions, in comparison with the U-shaped groove, the speed and static pressure of the V-groove are higher, the cohesion between the higher strength of the sliver fiber cohesion is closer, and the twist is easier to be transferred leading to yarn
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2016年第9期145-150,155,共7页
Journal of Textile Research
基金
国家自然科学基金资助项目(51403085)
江苏省自然科学基金资助项目(BK20130148)
关键词
转杯纺
纺纱通道
凝聚槽
气流场
数值模拟
rotor spinning
spinning channel
flocculation tank
airflow field
numerical simulation
