Standard Article

137 Uniform Flow

Part 12. Open-Channel Flow

  1. Walter H Graf,
  2. Mustafa S Altinakar

Published Online: 15 APR 2006

DOI: 10.1002/0470848944.hsa144

Encyclopedia of Hydrological Sciences

Encyclopedia of Hydrological Sciences

How to Cite

Graf, W. H. and Altinakar, M. S. 2006. Uniform Flow. Encyclopedia of Hydrological Sciences. 12:137.

Author Information

  1. Laboratoire de Recherches Hydrauliques, Ecole Polytechnique Fédérale, Lausanne, Switzerland

Publication History

  1. Published Online: 15 APR 2006


The equation of continuity and of motion will be developed. The different relationships for the determination of the coefficients of friction for fixed and mobile channel beds are subsequently presented. The calculation of discharge is elaborated. Elementary knowledge about flow in curves as well as instabilities at the free-water surface are exposed.


  • open-channel flow;
  • uniform flow;
  • equation of motion;
  • coefficients of friction;
  • bed forms;
  • discharge calculations;
  • critical velocity;
  • flow in curves;
  • instability of free surface