Abstract
A numerical model is established for simulating the wave action on a horizontal circular cylinder close to the sea-bed. The two-dimensional Navier-Stokes (NS) equations are solved by a finite element method. The arbitrary Lagrangian-Eulerian scheme is employed for tracking the moving free surface boundary. After each computational time step, the mesh is updated by solving a linear equilibrium equation of elasticity. In front of the outgoing boundary a damping layer is set to absorb the wave energy. The computation is carried out for the gap between the cylinder and sea bed (e) ranging from 0.1 to 1.5D, with D being the cylinder diameter, and the Reynolds number about 1800. The computed wave force coefficients and velocity fields are verified by the experimental results reported by Jarno-Druaux et al. (1995).
| Original language | English |
|---|---|
| Pages (from-to) | 137-143 |
| Number of pages | 7 |
| Journal | Journal of Hydrodynamics |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Feb 2006 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2006, China Ship Scientific Research Center.
Keywords
- circular cylinder
- finite element method
- hydrodynamic forces
- navier-stokes equations
- wave