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2 results

  • 12 - Channel Routing

  • Biswajit Mukhopadhyay, Gannett Fleming TranSystems, Vijay P. Singh, Texas A&M University
  • Book:
    Applied Hydrology
    Published online:
    09 July 2024
    Print publication:
    04 July 2024, pp 454-515

  • Summary

    Describes channel routing, including governing equations, characteristics of flood wave movement, channel routing methods, modified Puls, Muskingum, Lag and K, and Muskingum-Cunge methods of channel routing, selection of a routing mehod, comparison of hydrologic and hyraulic methods of routing, and channel routing in HEC-HMS.

  • 5 - Water on the Land Surface: Fluid Mechanics of Free Surface Flow

  • from Part II - Water on the Surface
  • Wilfried Brutsaert, Cornell University, New York
  • Book:
    Hydrology
    Published online:
    01 March 2023
    Print publication:
    23 February 2023, pp 183-215

  • Summary

    In the analysis of most free-surface flows in hydrology it can be assumed that the pressure distribution is hydrostatic normally to the bottom; this in turn allows the adoption of a uniform velocity profile. These two simplifications form the basis of shallow-water theory. In the resulting continuity and momentum equations, also referred to as the Saint Venant equations, the effects of viscosity and turbulence are parameterized in terms of a friction slope. These equations are not easy to solve in general, but important features of free-surface flow can be brought out by solutions of their linearized, diffusion, quasi-steady-uniform flow (or kinematic wave), and lumped kinematic approximations.