11. Introduction
The chapter discusses fluid mechanics, specifically fluid kinematics, emphasizing the visualization of flow patterns using various apparatus and experimental techniques. It explores the methods to determine irrotational and rotational flow by computing velocity components and vorticity. The chapter includes examples that illustrate how to apply these concepts to solve practical fluid flow problems.
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Sections
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What we have learnt
- Fluid kinematics involves understanding velocity fields and particle motion.
- Irrotational flows can be analyzed using velocity potential functions.
- Flow visualization techniques, including the use of apparatus like Hele-Shaw, allow for better understanding of fluid patterns.
Key Concepts
- -- Velocity Field
- A vector field that represents the velocities of fluid particles at different points in the fluid.
- -- Irrotational Flow
- A flow where the vorticity is zero, indicating that the flow's rotation characteristics do not exist.
- -- Vorticity
- A measure of the local rotation of a fluid element, defined mathematically as the curl of the velocity vector field.
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