Nonlinear Hydrodynamic Forces on Floating Bodies

摘要

Two- and three-dimensional SOLA codes were used to investigate nonlinear and three-dimensional effects influencing the hydrodynamic forces on floating cylinders. In particular, nonlinear effects arising during large amplitude swaying motions of a two-dimensional 60 exp 0 triangular cylinder are presented. The results of the numerical studies are compared with data and an interpretation of the observed nonlinear effects is discussed. A second study is presented that compares two- and three-dimensional calculations of the triangular cylinder in sway. Here the end effects associated with finite length cylinders are noted. Nonlinear finite amplitude effects for the three-dimensional triangular cylinder are also studied. Finally, some results are presented for other nonlinear forces experienced by cylinders in two- and three-dimensional situations. (ERA citation 03:015607)