👉 The Warren fluid, also known as Warren's liquid or Warren's non-Newtonian fluid, is a complex, shear-thinning fluid discovered by American physicist James Warren in 1948. Unlike typical Newtonian fluids, whose viscosity remains constant regardless of applied stress, Warren's fluid exhibits a unique property: its viscosity decreases with increasing shear rate. This means that when subjected to stress, it flows more easily, making it highly responsive to external forces. This behavior is due to the fluid's internal structure, which consists of long, entangled polymer chains that align and relax under stress, reducing resistance to flow. The Warren fluid's non-Newtonian characteristics make it useful in various scientific and industrial applications, including modeling biological fluids, studying complex materials, and developing advanced lubricants.
