Which flow type refers to the smooth flow of air over a surface?

Laminar flow is characterized by smooth, orderly layers of air (or fluid) that move in parallel lines with minimal disruption. This type of flow occurs at lower velocities and in scenarios where the fluid's viscosity plays a significant role in maintaining the flow's orderly nature.

In laminar flow, the individual particles of the fluid follow well-defined paths, which minimizes friction and allows for efficient movement over surfaces. This is in contrast to turbulent flow, where chaotic and irregular movements of the fluid arise, leading to increased friction and energy loss.

Static flow refers to a situation where there is no movement of fluid, while dynamic flow encompasses all types of moving fluids, including both laminar and turbulent flows. Laminar flow is crucial in many aerospace applications, as it can help reduce drag on surfaces such as wings or fuselages, improving aircraft efficiency and performance.