👉 A flat fluid, also known as a liquid or non-Newtonian fluid, is a substance that has no fixed shape but can flow like a liquid. Unlike Newtonian fluids, such as water or air, which maintain a constant viscosity regardless of applied stress, flat fluids exhibit variable viscosity. This means their resistance to flow changes depending on the force or shear applied to them. Common examples include honey, oil, and certain types of blood. These fluids can behave as both liquids and gases under specific conditions, such as very high shear rates, where they can temporarily solidify into a gel-like state.
