👉 A virtual fluid, also known as a volume-of-fluid (VOF) method, is a computational technique used to simulate the interaction between fluids and solid boundaries or interfaces within a computational domain. It represents the fluid as a continuous medium rather than tracking individual fluid particles, making it particularly effective for problems involving complex interfaces, such as droplets, bubbles, or multiphase flows. By solving the governing equations for the fluid's pressure and velocity fields, while accounting for the volume fraction of each phase within the computational grid, virtual fluids can accurately capture the dynamics of fluid interfaces and their interactions with solid surfaces or other fluids. This approach is widely used in various engineering applications, including oil and gas, chemical processing, and environmental modeling.
