Computational wave dynamics for innovative design of coastal structures

Area of Science:

• Fluid dynamics
• Coastal engineering
• Computational science

Background:

• Numerical Wave Flumes (NWFs) are critical for designing coastal structures.
• Accurate simulation of free-surface flows is essential for understanding wave dynamics.

Purpose of the Study:

• To provide an overview of various methods and techniques for Numerical Wave Flumes (NWFs).
• To highlight recent improvements in particle methods for NWFs.
• To discuss the significance of NWFs compared to conventional wave models.

Main Methods:

• Interface capturing techniques: Marker-And-Cell (MAC), Volume of Fluid (VOF), Coupled-Cell-in-Cell Particle (C-CUP).
• Particle methods for free-surface flow simulation.
• Techniques to mitigate unphysical pressure fluctuations and enhance accuracy: CMPS method, Higher-order Source of Poisson Pressure Equation (PPE), Higher-order Laplacian, Error-Compensating Source in PPE, Gradient Correction.
• Advanced particle methods: Dynamic Stabilization, Space Potential Particle.

Main Results:

• Interface capturing methods are key components of NWFs.
• Particle methods offer significant improvements for NWFs.
• Specific techniques enhance momentum conservation, accuracy, and stability in simulations.
• New frontiers like Dynamic Stabilization and Space Potential Particle improve computational stability and boundary condition representation.

Conclusions:

• NWFs are indispensable tools for innovative coastal structure design.
• Advancements in particle methods are crucial for the future of NWFs.
• Continuous development of NWF techniques leads to more accurate and stable free-surface flow simulations.