Indiana Water Rescue Operations Practice Test

Laminar flow is the smooth, orderly flow where the fluid moves in parallel layers that glide past one another with little to no mixing between them. When a disturbance occurs, the layers continue traveling in their own paths, maintaining that layered structure because viscosity keeps the motion organized and turbulence is minimal. This contrasts with eddy flow, which involves swirling motions that mix layers; helical flow, which introduces rotation around an axis; and a chute scenario, which is typically associated with rapid, turbulent mixing. So the flow that stays in parallel layers with minimal cross-layer mixing is laminar flow.