What type of flow describes fluid particles moving along distinct, non-intersecting trajectories__________________?
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Answer: E. streamline flow
Explanation
Streamline flow, also known as laminar flow, occurs when fluid particles travel in smooth, orderly parallel paths. In this flow regime, adjacent fluid trajectories never intersect, and fluid particles do not mix across streamlines. Viscous forces dominate over inertial forces, maintaining smooth and predictable movement throughout the fluid volume. Reynolds number is the dimensionless parameter used to predict whether fluid flow will remain laminar or transition to turbulent. Laminar flow exhibits a parabolic velocity profile across pipe diameters, with maximum velocity occurring at the center. Fluid friction in streamline flow is directly proportional to the fluid viscosity and flow velocity.
One dimensional flow assumes flow properties vary along a single spatial coordinate, which does not define individual particle paths. Uniform flow means fluid velocity does not change with distance along the flow direction, regardless of streamline patterns. Steady flow implies that fluid properties at any given point do not change over time, unlike the trajectory definition of streamlines.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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