👉 Mechanical fluids, also known as newtonsian fluids, are a class of fluids that exhibit a linear relationship between shear stress and shear rate. This means that when these fluids are subjected to a force, they deform uniformly without any change in viscosity, or resistance to flow. Examples include water, air, and most liquid metals at low temperatures. The key characteristic of mechanical fluids is their predictable behavior under stress, making them crucial in various engineering applications such as pipelines, hydraulic systems, and aerodynamics. Unlike non-Newtonian fluids, which can have varying viscosities depending on the applied stress, mechanical fluids maintain a constant viscosity regardless of the shear rate.
