CIV E 530 - OPEN-CHANNEL HYDRAULICS
FALL 2011
LAB No. 5 DEMONSTRATION:  UNIFORM FLOW

Objective: To demonstrate the establishment of uniform flow under several Froude numbers.

  1. The friction equation is:

    So = f F2

    Assume Darcy-Weisbach friction factor fD = 0.016; therefore, the dimensionless Chezy friction factor f = 0.002 for the bench flume (acrylic glass).

  2. Run two cases:

    • Steep slope (supercritical flow):  So = 0.01

    • Critical slope:  So = 0.002

  3. Calculate Froude numbers for the two conditions.

  4. Summarize findings in a short report.