Abstract:

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.