fluidt

Fluidt is a cross-platform, open-source framework designed to simulate and visualize fluid flows in real time. The project aims to provide a compact, accessible tool for education, research prototyping, and game development by offering a modular library that implements common fluid-simulation techniques and a straightforward rendering pipeline.

Fluidt emphasizes a balance between numerical accuracy and interactive performance, supporting grid-based solvers for incompressible Navier–Stokes equations, a particle-based surface representation, and boundary handling for obstacles. Its core components include a solver module, a scene-graph wrapper, and a rendering adapter that can target OpenGL or WebGL backends, enabling execution on desktop and web platforms.

The framework typically exposes high-level APIs for setting initial conditions, applying forces, and querying fields such as velocity and pressure, while providing lower-level hooks for custom solvers and extended material models like viscosity and surface tension.

Fluidt originated as a community-driven project in the late 2010s, with contributions from researchers, educators, and hobbyist developers. It has since grown through open discussions, documentation, and sample simulations, including 2D and 3D tutorials. In practice, Fluidt is used to illustrate fluid phenomena in classrooms, to prototype interactive effects in games, and to test visualization ideas in research.

Limitations include performance constraints for large-scale 3D simulations and the need for careful parameter tuning to maintain stability in real time. See also Navier–Stokes, computational fluid dynamics, macro-scale fluid simulation.