an:02071210
Zbl 1059.76013
Flynn, Morris R.; Onu, Kristjan; Sutherland, Bruce R.
Internal wave excitation by a vertically oscillating sphere
EN
J. Fluid Mech. 494, 65-93 (2003).
00101153
2003
j
76B55 76D33 76-05
centerline amplitude; viscous boundary layer; Boussinesq approximation
The authors derive and analyze a formula for the structure of small-amplitude Boussinesq internal wave cones generated by a vertically oscillating sphere. Unlike the corresponding formula for an oscillating circular cylinder, the theory developed in this paper predicts that the centerline amplitude of the beam decrases monotonically over its extent. The theory neglects the dynamics of viscous boundary layers surrounding the sphere, and it assumes that the along-beam variations are negligibly small.
Messoud A. Efendiev (Berlin)