Journal
OCEAN ENGINEERING
Volume 223, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2021.108705
Keywords
Wave-body interaction; Fully nonlinear boundary conditions; MEL method; Auxiliary functions method; Irregular waves
Funding
- National Natural Science Foundation of China [51679045]
- Fundamental Research Funds for the Central Universities [3072020CF0106]
- China Classification Society (CCS)
Ask authors/readers for more resources
A three-dimensional fully nonlinear time domain method is introduced to simulate ship advancing in regular and irregular waves, using a mixed Eulerian-Lagrangian method and boundary element method. The spring analogy method is utilized to ensure mesh optimization, and auxiliary functions are deduced to decouple strongly nonlinear hydrodynamic forces and ship motion. The numerical results for a 13500 TEU container ship are validated against experimental data, showing good agreement in regular and irregular waves.
A three dimensional fully nonlinear time domain method is introduced to simulate ship advancing in regular and irregular waves with forward speed. The mixed Eulerian-Lagrangian (MEL) method and boundary element method are adopted to solve the boundary value problem. Spring analogy method is utilized to guarantee the optimization mesh of the transient free surface and wetted hull body. A local coordinate system is introduced, and the fully nonlinear disturbed wave is separated from the total wave. Auxiliary functions are deduced to decouple the strongly nonlinear hydrodynamic forces and ship motion. Then the motion and velocity potential can be updated with the fourth-order Runge Kutta method. A 13500 TEU container ship is chosen to verify the numerical codes, the numerical results in regular waves and irregular waves are both in good agreement with experimental data. The instantaneous pressure distribution around wetted body surface and wave elevation on the free surface of dangerous moments are presented and the strongly nonlinear states in the harsh irregular waves are analyzed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available