Please use this identifier to cite or link to this item:
|Title:||Numerical investigation of wave radiation by a vertical cylinder using a fully nonlinear HOBEM|
Translation and rotation
|Citation:||Zhou, B.Z., Ning, D.Z., Teng, B., Bai, W. (2013). Numerical investigation of wave radiation by a vertical cylinder using a fully nonlinear HOBEM. Ocean Engineering 70 : 1-13. ScholarBank@NUS Repository. https://doi.org/10.1016/j.oceaneng.2013.04.019|
|Abstract:||A time-domain higher-order boundary element method (HOBEM) is developed to simulate fully nonlinear wave radiation by a forced oscillating structure. On the free surface, a Mixed Eulerian-Lagrangian (MEL) technique is employed in the time marching process, and mesh regridding and interpolation are applied to avoid possible numerical instability. An artificial damping layer is distributed on the outer part of the free surface to prevent wave reflection from the far-field boundary. For the calculation of wave loads, some auxiliary functions are used, instead of directly predicting the time derivative of the velocity potential. The developed model is applied to simulate a truncated vertical circular cylinder undergoing forced heave, surge or pitch motions, respectively. A series of higher-harmonic force components on the cylinder are derived by the Fourier Transformation. The added-mass and radiation-damping coefficients of the cylinder are also obtained from the least-square method. The simulated results are compared with the experimental and numerical results of other researchers. The present results are in good agreement with the experimental and other fully nonlinear results, while different with the linear and second-order solutions. © 2013 Elsevier Ltd.|
|Source Title:||Ocean Engineering|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 14, 2018
WEB OF SCIENCETM
checked on Jun 19, 2018
checked on Jun 22, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.