The streamlines of the particles in a flow are recorded. If the streamline distribution remain the same even after sometime, what type of flow can it be?

The streamlines of the particles in a flow are recorded. If the streamline distribution remain the same even after sometime, what type of flow can it be? Correct Answer steady

A streamline is defined as an imaginary line within the flow such that the tangent at any point on it indicates the velocity at that point. In a steady flow, the velocity of the particles is constant with time. Hence, the streamlines remain the same even after sometime.
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