Table 1.

Operating conditions.

	Range of Re at which the flexible nozzle vibrates	Strain (%)	Volume flow rate,$\dot{Q}\times {10}^6\left({\mathrm{m}}^3∕\mathrm{s}\right)$	Frequency, f (Hz)	Equivalent diameter,De (mm)	Maximum exit velocity over all phases,Umax (m∕s)	Equivalent velocity,$U_e=4\times \dot{Q}∕\pi D_e^2\left(\mathrm{m}∕\mathrm{s}\right)$	Strouhal number, St=fDe∕Ue	Mode
Case 1	Remax=12 800	35.94	333	151	10.8	9.71	3.64	0.45	Nonflapping
Case 2	Remin=1170		1000	153	11.7	17.15	9.3	0.19	Nonflapping
Case 3	Remax=13 300	40.18	217	169	8.9	10.05	3.49	0.43	Flapping
Case 4	Remin=760		1000	173	11.0	15.23	10.52	0.18	Nonflapping
Case 5	Remax=13 600	43.57	200	171	8.6	9.33	3.44	0.43	Flapping
Case 6	Remin=700		1000	175	10.7	15.31	11.12	0.17	Nonflapping