Fluid Kinematics
The chapter discusses fluid kinematics, focusing on fundamental approaches and principles governing fluid motion. It outlines the Lagrangian and Eulerian approaches, explores key concepts such as the Reynolds Transport Theorem and various flow visualization techniques, and examines types of flow and fluid deformation. Additionally, the chapter presents mathematical formulations including the continuity equation and discusses velocity potentials and stream functions.
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Sections
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What we have learnt
- Fluid motion can be analyzed using Lagrangian and Eulerian approaches.
- The Reynolds Transport Theorem connects Lagrangian analysis to Eulerian control volume analysis, indicating conservation of properties.
- Different flow visualization techniques include streamlines, path lines, and streak lines, each describing fluid behavior differently.
Key Concepts
- -- Lagrangian Approach
- Focuses on individual fluid particles and tracks their properties over time.
- -- Eulerian Approach
- Observes changes in fluid properties at fixed locations in space.
- -- Reynolds Transport Theorem
- A fundamental equation in fluid mechanics that relates the change in a property within a control volume to the flux of that property across its boundary.
- -- Continuity Equation
- A mathematical statement that asserts mass conservation in the flow field, expressed in differential form.
- -- Velocity Potential Function
- A scalar function used in irrotational flow, related to velocity through the gradient.
- -- Stream Function
- A function defined for 2D incompressible flow; its contours represent streamlines, automatically satisfying the continuity equation.
Additional Learning Materials
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