👉 A modelling fluid, often used in computational fluid dynamics (CFD) simulations, is a mathematical representation of a fluid's behavior, capturing its properties such as density, viscosity, and pressure. It is typically constructed using numerical methods to solve the Navier-Stokes equations, which describe the motion of fluid substances. These equations are discretized and solved on a computational grid, allowing for the simulation of complex fluid dynamics phenomena like turbulence, heat transfer, and mass transport. The modelling fluid is designed to accurately reflect the physical characteristics of the real fluid, enabling engineers and scientists to predict and analyze fluid behavior in various applications, from aerodynamics to chemical engineering processes.
