👉 A pulling fluid, also known as a viscous fluid or a thick fluid, is a substance that resists flow and deformation due to its high viscosity. In the context of fluid dynamics, particularly in systems involving pumps or fluid transfer mechanisms, a pulling fluid is essential for creating the necessary pressure differential to move fluids from one point to another. When a pump or other device applies force to the fluid, it causes the fluid to flow through the system. The high viscosity of the pulling fluid means that while it resists flowing easily, it also helps to maintain a steady pressure and flow rate, preventing turbulence and ensuring efficient transport of the fluid. This property is crucial in applications ranging from industrial processes to medical devices, where precise control over fluid movement is required.