A simple and new approach of reproducing inflow flood hydrograph of reservoirs

FANG Chonghui; GUO Shenglian; DUAN Yahui; YANG Xinming

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Volume 30 Issue 11

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Chinese Journal of Geotechnical Engineering > 2008 > 30(11): 1743-1747.

FANG Chonghui, GUO Shenglian, DUAN Yahui, YANG Xinming. A simple and new approach of reproducing inflow flood hydrograph of reservoirs[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(11): 1743-1747.

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A simple and new approach of reproducing inflow flood hydrograph of reservoirs

1.State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan University Wuhan 730072 China 2.Hubei Water Resources and Hydroelectric Investigation and Design Institute Wuhan 430064 China 3.Water Resources Department of Hubei Province Wuhan 430071 China

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Published Date: November 16, 2008

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Abstract

Abstract

The rainfall,water-level and outflow hydrograph corresponding to the over-dam inflow flood are analyzed.The inflow flood recurrence interval is evaluated,and the coordinate of outflow peak at the falling segment of the inflow hydrograph is found.The irrationality using the water-balance to reproduce inflow flood hydrograph is discussed.A simple triangle method for reproducing inflow flood of the reservoir is put forward,and the steps and conditions are proposed and discussed.The results and analytical method may be helpful to the operation and design of mountainous reservoirs.