The linear hydrodynamic stability for the axial flow between concentric circular cylinders has been investigated for both axisymmetric and asymmetric disturbances superposed on the mean flow. A step-by-step integration procedure has been chosen to solve the linearized disturbance equations. The neutral stability curves in the vicinity of minimum critical Reynolds number are obtained for various radius ratios and for azimuthal wave numbers from 0 to 4. The results show that the axisymmetric mode does not give the lowest critical Reynolds number for all radius ratios and also indicate the importance of the first azimuthal mode (n = 1) for small radius ratios.
The stability of axial flow between concentric cylinders to asymmetric disturbances
Stabilitaet der axialen Stroemung bei kreisfoermigen Zylindern bis zu asymmetrischen Stoerungen
1977
10 Seiten, 4 Bilder, 16 Quellen
Aufsatz (Konferenz)
Englisch
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