CIV E 530 - OPEN-CHANNEL HYDRAULICS
FALL 2011
LAB No. 4:  CRITICAL FLOW

  1. Derive the formula for the critical slope Sc for a prismatic channel, starting with the Manning equation:

    Q = (k/n) A R2/3 S1/2

    in which k = 1 in SI units, and k = 1.486 in U.S Customary units.

  2. Derive the formula for the critical slope Sc for a prismatic channel, starting with the Chezy equation:

    Q = C A R1/2 S1/2