Simulation and interaction of fluid and solid dynamics
Fluid and solid simulation is to generate a realistic simulation of fluids and solids, in particular for the fluids such as water and smoke, with computation of Euler equations or Navier-Stokes equations conducted to govern the real fluid physics. Fluid simulation is an important field by its wide applications in many fields and industries, such as film and game simulation, weather forecasting, natural disaster simulation and protection, simulation in maritime and aviation. There are basically two main categories of methods for fluid simulation, data-driven methods and physically-based methods. The data-driven models establish a direct mapping between variables and extract their relationship from historically measured data by the algorithms developed in the fields of statistics, computational intelligence, machine learning, and data mining. The physically-based models mainly express interior behavior through solving some mathematical equations that represent the motion of objects. The complicated interaction of fluid and solid is also an important topic in fluid simulation. Fluid-solid interaction happens in various forms in our lives. We have selected in this special issue seven papers that provide the latest updates on the development of Data-driven simulation in fluids animation, and various physically based approaches such as the smoothed particle hydrodynamics (SPH), two-phase liquid simulation, cumulus cloud modeling.