A three-dimensional numerical model for flexible tube vibration induced by cross flow is proposed.

The dynamic behavior and response characteristic of the tube are investigated. Meanwhile, the limit cycle and bifurcation of lift coefficient and displacement are analyzed.

Amplitude response, trajectory, phase difference, fluid force coefficient and vortex shedding frequency are investigated.

A quasi-upper branch occurs in the fluid–structure interaction system, and there is no bifurcation of lift coefficient and lateral displacement occurred in three dimensional flexible tube submitted to uniform turbulent flow.