The results indicate that the disintegration of the jet column is caused by the surface waves propagating along the jet body. The jet breaks up at the wavetrough.
结果表明：沿射流柱表面传播的表面波是引起射流柱破碎的主要因素，破碎点位于表面波的波谷。
2
Physically, at a special critical wave speed the flow may have a naturally periodical separated-reattached pattern, with each wavetrough capturing a stable vortex ring.
In supersonic flow, results indicate that the disintegration of the jet column is caused by the surface waves induced by aerodynamic forces and the breakup point is at the wavetrough.