A Fluid flowing in a pipe and the velocities of liquid particles at all sections are the same. The type of flow is

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HPCL Engineer Mechanical 12 Aug 2021 Official Paper (Shift 2)

Answer 1

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.

NonUniform 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 nonuniform.

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.