Comment on “Resonant acoustic scattering by swimbladder-bearing fish” [J. Acoust. Soc. Am. 64, 571–580 (1978)] (L)
Scattering cross section as a function of = b/a for various a (solid). Dashed lines are asymptotic values when → ∞. Shear viscosity of sea water which is approximately 10−3 Pa s is neglected. Material parameters used in the calculation are ηfs = 5 Pa s, h = 0 m, ν/a = 104 Pa.
Normalized scattering cross section of a swimbladder-bearing fish flesh submerged in sea water (a) for different values of radius of swimbladder a (evaluated at h = 50 m when = 3, ξf = 20 Pa s, and ν/a = 104 Pa) and (b) at different water depths (evaluated when a = 1 cm, = 3, ξf = 20 Pa s, and ν/a = 104 Pa). Shear viscosity of sea water which is approximately 10−3 Pa s is neglected.
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