Numerical modeling of wave interactions with coastal structures by a constrained interpolation profile/immersed boundary method |
| |
| Authors: | Xizeng Zhao Yangyang Gao Feifeng Cao Xinggang Wang |
| |
| Institution: | 1. Ocean College, Zhejiang University, Hangzhou, China;2. State Key Laboratory of Hydrology‐Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing, China;3. Institute of Harbor‐Channel and Coastal Engineering, Department of Civil Engineering, Zhejiang University of Technology, Hangzhou, China |
| |
| Abstract: | A high‐order difference method based multiphase model is proposed to simulate nonlinear interactions between water wave and submerged coastal structures. The model is based on the Navier–Stokes equations using a constrained interpolation profile (CIP) method for the flow solver, and employs an immersed boundary method (IBM) for the treatment of wave–structure interactions. A more accurate interface capturing scheme, the volume of fluid/weighed line interface calculation (VOF/WLIC) scheme, is adopted as the interface capturing method. A series of computations are performed to verify the application of the model for simulations of fluid interaction with various structures. These problems include flow over a fixed cylinder, water entry of a circular cylinder and solitary waves passing various submerged coastal structures. Computations are compared with the available analytical, experimental and other numerical results and good agreement is obtained. The results of this study demonstrate the accuracy and applications of the proposed model to simulate the nonlinear flow phenomena and capture the complex free surface flow. Copyright © 2015 John Wiley & Sons, Ltd. |
| |
| Keywords: | immersed boundary method wave– structure interaction volume of fluid method Cartesian grid method CIP method |
|
|
