👉 The Passive Fluid is a concept in fluid dynamics that describes a state where the flow of a fluid is highly stable and resistant to disturbances, much like oil in a still pond. In this state, the fluid's velocity and pressure fields are relatively uniform across the flow field, with minimal turbulence or eddies. This stability arises from a balance between viscous forces and inertial forces, where the viscous forces dominate, dampening any small perturbations. As a result, the Passive Fluid exhibits predictable and consistent behavior, making it an ideal condition for certain engineering applications where stability and uniformity are crucial.
