Abstract
The recently developed Consistent Particle Method (CPM) is used to model breaking waves in tsunami and violent sloshing waves in a moving tank. Solving the Navier-Stokes equations in a semi-implicit time stepping scheme, the CPM eliminates the use of kernel function which is somewhat arbitrarily defined and used in other particle methods. It is demonstrated that the method is applicable to large amplitude free surface wave problems that involve breaking phenomenon. Tsunami wave impact on a fixed structure is modeled using CPM. The simulated results show fairly good agreement to the actual nonlinear wave motions including overturning and breaking of waves. Large amplitude sloshing waves in a moving tank are investigated with CPM. Experiment was conducted in the laboratory to verify the CPM solutions. The hydrodynamic pressure computed by the CPM agrees well with the experimental results.
Highlights
Numerical simulation has made an enormous impact on the study of free surface motion of incompressible liquid such as liquid sloshing
A new generation of computational methods known as meshless methods is shown to outperform conventional mesh-based method in dealing with discontinuous fluid motion
The pressure history at Point P3 using Consistent Particle Method (CPM) is shown in Figure 3 with the comparison of experimental results
Summary
Numerical simulation has made an enormous impact on the study of free surface motion of incompressible liquid such as liquid sloshing. Simulating this complex problem has many important applications, ranging from coastal protection and offshore structure design to LNG/oil sloshing on vessels. These problems are difficult to simulate due to the free surface boundary condition is changing and not known a priori. Lagrangian meshless methods called particle methods have shown very good potential in dealing with large-amplitude free surface flows[1], moving interfaces and deformable boundaries.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
