👉 The named fluid refers to a type of fluid that is described by its name rather than specific physical properties, such as density or viscosity. This concept is particularly useful in fluid dynamics and thermodynamics when dealing with complex or unusual fluids where precise measurements are challenging. Named fluids are often used to model a wide range of substances, from simple gases like air to more complex mixtures or even certain biological fluids, by assigning them specific names based on their characteristics or behavior under different conditions. This naming convention simplifies discussions and calculations, making it easier to communicate and understand the fluid's behavior in various applications.