Time-domain simulation of second-order Stokes waves in a two-dimensional wave flume
- Univ. of Houston, TX (United States). Dept. of Civil and Environmental Engineering
A numerical simulation of the generation and propagation of transient, second-order Stokes waves in a semi-infinite, narrow channel of uniform depth is presented. The wave motion is generated by the small amplitude, oscillatory motion of a generic planar wavemaker. Particular attention is focused on the radiation boundary condition at second-order. A novel second-order radiation boundary condition is applied at the far-field boundary. The suitability of this condition is verified by considering the forms of the computed second order wave profiles for various locations of the radiation boundary. The accuracy of the solution is studied by monitoring the difference between the energy flux at the boundaries of the computational domain and the rate of change of kinetic energy of the fluid. It is found that the present approach provides an accurate and efficient technique to simulate the generation and propagation of nonlinear Stokes waves in a two dimensional wavetank.
- OSTI ID:
- 55697
- Report Number(s):
- CONF-940230--; ISBN 0-7918-1264-2
- Country of Publication:
- United States
- Language:
- English
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