Flow Velocity: The Chézy Formulation
Open-channel flow velocity is proportional to shear velocity.
Open-channel Hydraulics
Continuity
What goes in must come out.
Flow velocity: Darcy–Weisbach Friction Factor and Equation
The Darcy–Weisbach Friction Factor relates shear velocity to mean flow velocity.
Introduction to open-channel hydraulics
Hydraulics is the study of flows and flow mechanics. The mass balance of hydrology is passed to the field of hydraulics to find how the water passes through ...
Laminar and turbulent flow
Does the flow remain smooth and orderly or does it devolve into the chaos of a hundred kindergartners who all speak different languages racing around a playg...
Flow velocity: Prandtl Mixing and the Law of the Wall
Rigorous derivation of turbulent mixing (Prandtl) and the boundary-layer fluid-velocity profile.
Flow Velocity: Manning’s Formula
Flow resistance is proportional to flow depth, which modulates the influence of bed roughness. Deeper flows feel the bed less.
Problem Set: Rating curves, flood management, and geomorphically effective discharge
Develop a theoretical “rating curve” – stage–discharge relationship – for a rectangular river channel with a floodplain. Consider how you would efficiently m...
Shear Stress, Shear Velocity, and Turbulence
Shear within flow creates turbulent eddies.
Steady, Uniform Flow and where it applies
The steady and uniform flow assumptions provide an essential simplification to understanding the mechanics of flow in rivers.
Flow-velocity fluctuations and the intensity of turbulence
Turbulent flow is characterized by eddies, which produce fluctuations in the velocity of the flow.
Flow-velocity profile
Turbulent flow is characterized by eddies, which produce fluctuations in the velocity of the flow.
Viscosity (and Elasticity)
Internal resistance to flow.