Frequencies of Transverse and Longitudinal Oscillations in Supersonic Cavity Flows

Table 3

Strouhal numbers of pressure oscillations resulting from feedback mechanisms for .

(a) Equation (3) (longitudinal oscillation)

St (Cal.)	0.24	0.57	0.89	1.21	1.53
St (Exp.)	—	0.56 (St2)	0.90 (St4)	1.22 (St5)	1.55 (St7)

(b) Equation (4) (transverse oscillation)

St (Cal.)	0.17	0.28	0.51	0.62	0.84	0.96	1.18	1.52
St (Exp.)	—	0.28 (St1)	—	0.62 (St3)	—	—	—	—