Abstract
In the cylindrical coordinate system, a singular perturbation theory of multiplescale asymptotic expansions was developed to study single standing water wave mode by solving potential equations of water waves in a rigid circular cylinder, which is subject to a vertical oscillation. It is assumed that the fluid in the circular cylindrical vessel is inviscid, incompressible and the motion is irrotational, a nonlinear amplitude equation with cubic and vertically excited terms of the vessel was derived by expansion of two-time scales without considering the effect of surface tension. It is shown by numerical computation that different free surface standing wave patterns will be formed in different excited frequencies and amplitudes. The contours of free surface waves are agreed well with the experimental results which were carried out several years ago.
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