Background and Objective: The air-flow field of the air centrifugal spinning is simulated
and measured. The simulated air velocities coincide well with the measured ones, confirming the correctness
of the air-flow field model.
Methods: The polymer drawing in the air-flow field of the air centrifugal spinning is modeled and
simulated. Effects of the rotation speed and initial air velocity on the diameter and radius vector of the
threadline are investigated.
Results: The air velocity is found to decrease with the increase of the distance away from the nozzle
exit. Simulation results show that both larger rotation speed and higher initial air velocity can reduce
the threadline diameter.
Conclusion: The radius vector of the threadline increases rapidly with the increase of the initial air velocity,
which is helpful to reduce the threadline diameter.