# In fluids, steady flow occurs when

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Updated on: September 25th, 2023

In fluids, steady flow occurs when-

1. Conditions of flow change steadily with time
2. At any point in time, the flow conditions do not change.
3. Pressure does not change along with the flow
4. The velocity vector remains constant at a point

Answer- 2. At any point in time, the flow conditions do not change.

## In fluids, Steady flow occurs when at any point in time, the flow conditions do not change.

Solution

Based on the above question, In fluids, Steady flow occurs when at any point in time the flow conditions do not change.

Steady flow: When the conditions at any point in the fluid do not change over time, the flow is said to be steady.

∂V/∂t=0

However, it may differ from one location to another, and the qualities do not alter through time.

∂P/∂t=0;  ∂T/∂t=0

Unsteady flow: When the flow parameters at any point change over time, the flow is said to be unstable.

∂V/∂t ≠ 0;  ∂P/∂t ≠ 0;  ∂T/∂t ≠ 0

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