Vortical inviscid flows with two-way solid-fluid coupling

Area of Science:

• Computer Graphics
• Computational Fluid Dynamics
• Scientific Simulation

Background:

• Vortex methods are gaining traction in computer graphics for simulating complex fluid phenomena like turbulence.
• Coupling free-form solids with vortex-based fluid simulations produces visually rich results.

Purpose of the Study:

• To introduce a novel approach for simulating solid-fluid interactions using Lagrangian vortex particles.
• To enable high-quality simulations of inviscid fluids interacting with 3D solids.

Main Methods:

• Simulating the creation of vorticity at a solid's surface.
• Utilizing Lagrangian vortex particles for fluid simulation.
• Introducing source panels to model nonturbulent flow around objects.

Main Results:

• Accurate simulation of vortex shedding (surface vorticity introduction).
• Accurate simulation of solid motion induced by fluid forces.
• First demonstration of two-way coupling between 3D solids and fluids using Lagrangian vortex methods in computer graphics.

Conclusions:

• The proposed method enables visually rich simulations of solid-fluid interactions.
• This work advances the simulation of turbulence and fluid-induced motion in computer graphics.
• It represents a significant step in applying Lagrangian vortex methods to complex 3D scenarios.