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What is the characteristic of three-dimensional flow in fluid mechanics?

5. What is the characteristic of three-dimensional flow in fluid mechanics?

1. Motion occurs only in one direction
2. Flow properties are constant throughout the domain
3. Flow properties vary in all three spatial dimensions
4. Velocity remains constant at any given point

Answer: C) Flow properties vary in all three spatial dimensions

Explanation:

In three-dimensional flow, fluid properties such as velocity, pressure, and density vary in all three dimensions, making the analysis more complex than lower-dimensional flows.