Sediment Transport Demonstration Channel Hydrodynamics Laboratory Teaching Equipment

ZM8119 Sediment Transport Demonstration Channel Hydrodynamics Laboratory Teaching Equipment

SUMMARY OF DEMONSTRATION TOPICS
• Fixed, smooth bed flow
• Flow over a mobile sand-bed
• Mechanics of sediment transport
• Depositionary features and facies
• Local scour
• Flow structures
• Bedform hysteresis
• Computational work
• Flow over a fixed, gravel bed
DEMONSTRATION CAPABILITIES
Fixed, Smooth Bed Flow:
The flume may be used without sediment on the bed to demonstrate the following flow phenomena and governing equations:
• Tranquil, sub-critical flow – movement of surface waves upstream against flow
• Rapid, super-critical flow – dominance of intertial over gravity forces, ‘shock waves’ from flow obstructions
• Hydraulic jump – transition from super to sub critical flow, air entrainment, mixing
• Turbulence – flow visualisation for example by dye injection from a hypodermic syringe (not supplied)
• Flow measurement – using sharp crested weirs
• Governing equations of open channel flow – Reynolds’ number, Froude number, continuity, Bernoulli’s equation, weir equations