Fluid-Structure Interaction Effects on the Propulsion of an Flexible Composite Monofin

Table 2

Natural frequencies (Hz) of the fin in the case of 0°/90°/0°/90°/0°.

Oriented fibers	In water
	0°/90°	1.7	46.0	103.1
0°/90°/0°	3.5	21.7	55.1
0°/90°/0°/90°	2.4	14.5	37.3
0°/90°/0°/90°/0°	2.7	11.8	33.4