CIV E 530 - OPEN-CHANNEL HYDRAULICS
FALL 2012
LAB No. 11:  UNSTEADY GRADUALLY VARIED FLOW

  1. Calculate the exponent β of the discharge-area rating for a triangular channel with Chezy friction.

    Q = α Aβ

    Q = C A R1/2 S1/2

  2. A flood wave is traveling inbank through a straight river reach of top width T = 160 m wide and length L = 5625 m. For every 1 cm of flood rise, the discharge goes up 10 m3/s. How long will it take for a given discharge to travel the length of the reach?