Parametric Study of Flood Wave Propagation

by K. Sridharan, Asst. Prof.; Civ. Engrg. Dept., Indian Inst. of Science, Bangalore, India 560012,
M. S. Mohan Kumar, Research Scholar; Civ. Engrg. Dept., Indian Inst. of Science, Bangalore, India 560012,

Serial Information: Journal of the Hydraulics Division, 1981, Vol. 107, Issue 9, Pg. 1061-1076

Document Type: Journal Paper

Discussion: Ponce Victor Miguel (See full record)
Errata: (See full record)


A parametric study of the flood wave propagation problem is made, based on numerical solution of the nondimensionalized unsteady flow equations of open channels. The propagation of a sinusoidal flood wave in a prismatic channel is studied for uniform initial flow. The governing parameters (initial uniform flow Froude number, wave amplitude, wave duration, channel width parameter and side slope) are varied over a wide range. In all, 49 cases are studied. Effects of these governing parameters on the subsidence of stage and discharge and the speed of the wave peak are described in detail. The relative wave amplitude is found to vary linearly with F0, the initial uniform flow froude number, for lower F0 values. Wave duration has a very pronounced effect on subsidence with greater subsidence at lower wave duration values.

Subject Headings: Parameters (statistics) | Floods | Wave propagation | Uniform flow | Land subsidence | Froude number | Channel flow | Numerical analysis

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