10. The Navier-Stokes Equation III
The chapter presents a detailed exploration of the Navier-Stokes equations and their applications in fluid mechanics, specifically focusing on irrotational and rotational flow concepts. It also covers velocity potential functions, Bernoulli's equations, and simplifications for various flow scenarios, including flow between fixed and moving plates. By examining the implications of different flow fields and utilizing approximations, it enhances the understanding of practical fluid mechanics problems.
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Sections
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What we have learnt
- Flow can be categorized into irrotational and rotational, influencing the use of different mathematical approaches.
- Velocity potential functions simplify the analysis of flow by reducing the number of variables involved.
- The Navier-Stokes equations can be approximated for simplified flow scenarios, such as between fixed and moving plates.
Key Concepts
- -- NavierStokes Equations
- Mathematical equations that describe the motion of fluid substances.
- -- Velocity Potential Functions
- Scalar functions used to simplify fluid flow problems by relating them to velocity fields.
- -- Bernoulli's Equation
- An equation that relates the pressure, velocity, and height in a moving fluid, applicable under certain flow conditions.
- -- Irrotational Flow
- Flow where the local rotation at any point is zero, allowing the use of velocity potential functions.
- -- Rotational Flow
- Flow that includes vorticity or rotation, requiring more complex solutions.
- -- Boundary Layers
- Regions in a fluid flow where viscosities are significant, influencing velocity and boundary shear.
Additional Learning Materials
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