1. Laminar and Turbulent Flow

2. Factors that affect the movement of a fluid
Fluid Dynamics
Factors that affect the movement of a fluid
Determines whether the flow is smooth or rough

3. Viscosity is fluid friction Viscosity depends on temperature
Higher temperature leads to lower viscosity (or lower resistance)

4. In a pipe,

5. In a pipe, Maximum flow in centre of pipe Minimum velocity
- Friction between fluid and walls reduces speed to nearly zero

6. Laminar Flow Layers flow smoothly over each other
Two Types of Flow:
Laminar Flow
Layers flow smoothly over each other
Generally travel in smooth, straight lines

7. Turbulent Flow Two Types of Flow: Irregular flow
Fluid is moving too quickly
Results in a whirling effect called an eddy and the fluid loses kinetic energy

8. Laminar Turbulent Transition
Depends on fluid speed, viscosity, density and size of object it encounters
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9. In a pipe,

10. Wind tunnels are used to analyse flow around objects
Analyzing Flow
Wind tunnels are used to analyse flow around objects
Laminar flow is preferred to reduce drag

11. Work
Read Pg & Answer Q # 3
Pg 281 # 1-3, 5, 7a