摘要
结合纤维的本构方程与气流控制方程,建立二维的纤维与气流耦合方程。采用相容时间积分与迭代耦合算法,对纤维在喷气织机主喷嘴中拉伸弯曲运动特性、纤维受力情况以及与壁面接触时的微观运动特性进行研究。结果表明:纤维在气流的作用下会产生拉伸弯曲变形,呈现正弦或者余弦形式波动;纤维在自由端的弯曲变形效果比在约束端的明显;纤维受到气流作用时,最大应力值往往发生在纤维弯曲部位以及与壁面相接触的部位。
A two-dimensional model of fluid-structure coupling was set up based on the equation of the fiber and the fluid control.The consistent time integration and iterative coupling algorithm were used to solve the equation.The interaction of the fiber and the airflow in the main nozzle,such as the fiber motional,deformational characteristics and the force of the fiber,was analyzed.The results show that the fiber under airflow will come into stretching and bending deformation and present in the form of sine or cosine.The deformation effect of the free end of the fiber is more obvious than that of the restrained end.The maximum stress often occurred in the bending position as well as the part where the fiber contacted with the wall.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2015年第1期152-157,共6页
Journal of Textile Research
基金
浙江省自然科学基金资助项目(LZ14E050004
LQ12A02002)
浙江理工大学流体工程技术创新团队资助项目(11132932611309)
浙江理工大学研究生创新研究项目(YCX13023)
关键词
流固耦合
数值模拟
纤维
自适应网格
fluid-structure interaction
numerical simulation
fiber
adaptive mesh
