Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition.
Correct answer: A. ∂/∂t = 0
- A. ∂/∂t = 0
- B. ∂/∂s = 0
- C. ∂/∂s = constant
- D. ∂/∂t = constant
Explanation
Steady flow means that flow variables at a fixed position do not change with time, so their time derivative is zero, ∂/∂t = 0. Spatial derivatives may still exist in steady flow.
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