👉 A perfect fluid is an idealized model in physics that perfectly obeys the equations of fluid dynamics, meaning it has no viscosity or internal friction, allowing it to flow without losing energy due to shear stress. This means a perfect fluid can move smoothly and continuously without any resistance, unlike real fluids which experience some degree of internal friction. Despite its idealized nature, perfect fluids serve as a useful approximation for many practical applications in engineering and physics, particularly in the study of gas dynamics, aerodynamics, and the behavior of fluids in pipelines. They simplify complex fluid behaviors, making it easier to analyze and predict fluid flow characteristics under various conditions.
