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What is the flow called, if the velocity at a given instant is the same in both magnitude and direction throughout the flow domain?

Uniform flow:- A truly uniform flow is one in which the velocity is the same in both magnitude and direction at a given instant at every point in the fluid.

\({\left( {\frac{{\partial V}}{{\partial s}}} \right)_{t = const}} = 0\)

Laminar Flow: Laminar flow is the flow in which fluid particles flow in layers. Each layer moves smoothly past the adjacent layer with little or no intermixing. There is no intermingling of fluid particles across the cross-section.

Turbulent Flow: Turbulent flow is the flow in which fluid particles flow in a random fashion where intermixing/intermingling is present.