含渦流作用之重力水波研究(2/2)
Date Issued
2005
Date
2005
Author(s)
DOI
932611E002012
Abstract
In this study, a grid-free numerical model for the simulation of gravita-
tional water wave with vortex effect is proposed. The computational algo-
rithm is established by combining a potential flow field with a vortex flow
field. The potential at the free surface and the free-surface displacement are
solved by the time integrations. The vorticity field is the solution of the vor-
ticity equation, which is solved using the vortex method and the vortex sheet
method. The potential and velocity fields are solved by the boundary integral
method.
Two cases are applied to validate the proposed model, and the vortic-
ity shedding due to the rectangular obstacle in the linear wave is simulated.
These results show the ability of the proposed model for the simulations of free-surface flows with vortex effect.
Subjects
gravitational water wave
vortex
boundary integral equation method
vortex method
numerical simulation
Publisher
臺北市：國立臺灣大學水工試驗所
Type
report
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