👉 Numerical fluid refers to the mathematical representation and computational methods used to model and analyze fluid dynamics, a branch of physics dealing with the behavior of fluids (liquids and gases). It involves employing numerical techniques to solve the governing equations of fluid motion, such as the Navier-Stokes equations, which describe how these fluids move and interact with their environment. These equations are nonlinear partial differential equations that can be extremely complex, making analytical solutions rare except for simple cases. Numerical fluid mechanics uses discretization methods to approximate these equations on a computational grid, enabling the simulation of fluid flow in various scenarios, from aerodynamics and weather prediction to engineering applications like pipeline design and turbine optimization. This approach allows for the numerical approximation of fluid behavior, providing insights into flow patterns, pressure distributions, and other critical parameters that are essential for practical applications.