Civil and Environmental Engineering 2224 Study Guide - Final Guide: Fluid Dynamics, Wetted Perimeter, Manning Formula

• School: Western University
• Department: Civil and Environmental Engineering
• Course: Civil and Environmental Engineering 2224
• Professor: Dr. Craig Miller

Document Summary

Becuase of the free surface, pressure is constant. Occurs in long channels of constant cross-section and slope. Under these conditions the mean flow velocity is constant. Flow depth is the called the normal depth. The flow varies rapidly over a short distance. There is rapid changes in both velocity and depth -this is called rapidly varied flow. The flow velocity and depth changes in a slow manner. Unsteady non-uniform flow -flow velocity and depth both change with respect to time at a fixed point. Uniform flow depth is the flow depth at steady state, uniform conditions. The flow depth is wants to be at, flowing at equilibrium. Develop flow area and wetted perimeter formulas from the shape of the channel. Guess and check to see when left-hand-side = right-hand-side. Maximizing the hydraulic radius yields that the most efficient cross-section is one in which.