A New Approach to Local Scour Depth Estimation Under a Horizontal Jet or Free Water Fall

by Yifan Zheng, Bechtel Corp, Gaithersburg, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


A new formula is presented to estimate the local scour depth development with time due to a horizontal jet or free water fall based on a new approach which combines the concept of energy expenditure during the scour process and the sediment mass conservation theory. The two coefficients required in the formula are determined from experimental data. A practical application of the proposed formula to the local scour depth prediction is also presented.

Subject Headings: Scour | Water conservation | Jets (fluid) | Fluid flow | Fluid mechanics | Hydro power | Energy efficiency | Water flow

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