9. Fluid Kinematics
The chapter focuses on fluid kinematics and explores concepts such as vorticity, fluid motion, and deformation. It highlights experimental methods for measuring fluid velocities and describes the importance of understanding both micro and macro fluid behaviors in real-time scenarios, especially in relation to cyclone formations and fluid dynamics. Furthermore, it introduces various fluid motion types and their implications for analyzing fluid behavior in engineering contexts.
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Sections
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What we have learnt
- Fluid kinematics is essential for understanding how fluids behave under different conditions.
- Vorticity plays a critical role in fluid motion, affecting the behavior of fluids in real-world applications such as super cyclones.
- Experimental techniques such as particle image velocimetry are valuable for measuring fluid velocities and understanding turbulence.
Key Concepts
- -- Vorticity
- A measure of the local rotation of fluid elements, indicating how much and how quickly they circulate.
- -- Lagrangian and Eulerian Descriptions
- Two fundamental approaches for analyzing fluid motion; Lagrangian focuses on specific particles and their trajectory, while Eulerian focuses on specific locations in the flow field.
- -- Strain Rate
- The rate of deformation of a fluid element, expressed in terms of the changes in velocity and length over time.
- -- Particle Image Velocimetry
- An experimental technique that uses laser illumination to obtain velocity fields in a fluid by tracking particles suspended in the fluid.
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