👉 An independent fluid, often referred to as a pure fluid or an ideal fluid in physics and engineering contexts, is a theoretical substance that exhibits no internal friction or viscosity. This means it flows smoothly without any resistance when subjected to external forces, behaving like a perfect fluid. Despite its idealized nature, the concept is useful for simplifying complex fluid dynamics problems, allowing for easier mathematical analysis and modeling of phenomena such as fluid flow in pipes, atmospheric circulation, and ocean currents. The ideal fluid model assumes that the fluid particles do not interact with each other except through elastic collisions, and it does not account for molecular interactions or intermolecular forces.
