Hydrodynamic Pressures in Stratified Reservoir

by Gunaratnam Balachandran, Grad. Student; Dept. of Civ. Engrg., Univ. of Waterloo, Waterloo, ON, Canada,
Tharakkal E. Unny, (A.M.ASCE), Prof.; Dept. of Civ. Engrg., Univ. of Waterloo, Waterloo, ON, Canada,
David S. Weaver, Asst. Prof.; Dept. of Mech. Engrg., McMaster Univ., Hamilton, ON, Canada,


Serial Information: Journal of the Engineering Mechanics Division, 1973, Vol. 99, Issue 4, Pg. 912-919


Document Type: Journal Paper

Abstract:

This note analyzes the effect of a density stratification in the reservoir on the hydrodynamic pressure exerted on rigid dams for a harmonic ground motion. Analysis shows that the fundamental frequency of a stratified reservoir is always less than that of a homogenous one. Since the fundamental frequency is lower, the total hydrodynamic pressure on the dam is generally greater than that for a homogeneous reservoir at excitation frequencies below the fundamental frequency.

Subject Headings: Hydrodynamics | Water stratification | Reservoirs | Dams | Ground motion | Homogeneity | Density currents | Density stratification

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