For a fluid flow to be considered stable it must be stable with respect to every possible disturbance, this implies that there exists no mode of disturbance for which it is unstable.
This implies that there exists no mode of disturbance for which it is unstable. For a fluid flow to be considered stable it must be stable with respect to every possible disturbance.
For a fluid flow to be considered stable it must be stable with respect to every possible disturbance. This implies that there exists no mode of disturbance for which it is unstable.
For a fluid flow to be considered stable it must be stable with respect to every possible disturbance. This implies that there exists no mode of disturbance for which it is unstable.