______ flow is defined as that type of flow in which the velocity at any given time does not change with respect to space.

Explanation:

Uniform flow is defined as the type of flow in which the velocity at any given time does not change with respect to space.

Non-Uniform flow is defined as the type of flow in which the velocity at any given time changes with respect to space.

When the velocity and other hydrodynamic parameters changes from one point to another the flow is defined as non-uniform.

Non - uniform Flow: When the fluid properties change with respect to space, the type of flow is known as Non - uniform flow.

Steady Flow: When the fluid properties do not change with respect to time, then the flow is known as steady flow.

Unsteady flow: When the fluid properties changes with respect to time, then the flow is known as unsteady flow.

Rotational flow: When the fluid particles rotate about their centre of mass, then the flow is known as rotational flow.

• The flow of liquid through a long pipe of constant diameter at a constant rate is a steady uniform flow
• The flow of liquid through a long pipeline of constant diameter, at either increasing or decreasing rate, is unsteady – uniform flow
• The flow of liquid through a tapering pipe at a constant rate is steady non – uniform flow

​

• The flow through a tapering pipe at either increasing or decreasing rate is unsteady – non – uniform flow.