47. Kennedy’s and Lacey’s Theory of Regime Channels
Kennedy’s and Lacey’s theories provide foundational knowledge for understanding regime channels in irrigation and drainage systems. Kennedy’s Theory focuses on critical velocity in stabilizing channel dimensions, while Lacey’s Theory expands upon this by offering empirical equations tailored for diverse canal systems. Both theories, despite their limitations, retain relevance in contemporary civil engineering practices for channel design.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Regime channels achieve stability with consistent discharge and sediment load.
- Kennedy’s Theory emphasizes critical velocity and its role in preventing silting.
- Lacey’s Theory is based on empirical data and provides comprehensive equations for stable channel design.
Key Concepts
- -- Regime Channel
- A channel that maintains a stable state, preventing significant erosion or silting, by dynamically adjusting its characteristics.
- -- Critical Velocity
- The minimum velocity required to prevent sediment deposition within a channel, as introduced in Kennedy's Theory.
- -- Silt Factor
- A factor in Lacey's equations that accounts for sediment size in determining channel flow characteristics.
Additional Learning Materials
Supplementary resources to enhance your learning experience.