Development a Two-objective Simulation-Optimization Model for Optimal Design of Geometric Dimensions and Slope of the Stepped Spillway of Upstream Siah-Bisheh Dam Using NSGA-II

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SOHRABI ZAHRA; Sarvarian Javad; Mamizadeh Jafar

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Journal: Iranian Journal of Soil and Water Research Year:2020 | Volume:51 | Issue:2 Page(s): 469-478

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Title

Development a Two-objective Simulation-Optimization Model for Optimal Design of Geometric Dimensions and Slope of the Stepped Spillway of Upstream Siah-Bisheh Dam Using NSGA-II

Author(s)

SOHRABI ZAHRA | Sarvarian Javad | Mamizadeh Jafar | Issue Writer Certificate

Keywords

NSGA-II AlgorithmQ1

Two Objective OptimizationQ1

Upstream Siah-Bisheh DamQ1

Stepped SpillwayQ1

Simulation-Optimization ModelQ1

Abstract

For safe pass of flood flow from upstream to downstream of dams, the spillways are used. Among the various spillways, in Stepped Spillways, the flow is dissipated when passing through the structure. This will reduce the cost of downstream energy-dissipaters structures such as stilling basin. In addition to energy dissipation, the volume and cost of Stepped Spillways can affect its design. The best design of the Stepped Spillway is that the remaining energy and the volume and cost of the spillway will be minimized. Therefore, the Stepped Spillway design is a multi-objective optimization problem. In the present study, a two-objective Simulation-Optimization Model based on the NSGA-II Algorithm was used to minimize the possible remaining energy and spillway volume. The results showed with increasing the relative height of spillway stairs, the amount of remaining energy is increased initially and after reaching a peak point, it would be reduced to a constant value. From the perspective of volume and cost of spillway, by increasing the relative height of the spillway stairs, its volume is increased linearly and by increasing the spillway angle, its volume decreased. The results of multi-objective optimization model showed that in the current plan of Siah-Bisheh Dam spillway, the remaining energy and the volume of spillway criteria were considered well. So that 83. 7 percent of the flow energy is dissipated.

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APA: Copy

SOHRABI, ZAHRA, Sarvarian, Javad, & Mamizadeh, Jafar. (2020). Development a Two-objective Simulation-Optimization Model for Optimal Design of Geometric Dimensions and Slope of the Stepped Spillway of Upstream Siah-Bisheh Dam Using NSGA-II. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 51(2 ), 469-478. SID. https://sid.ir/paper/363654/en

Vancouver: Copy

SOHRABI ZAHRA, Sarvarian Javad, Mamizadeh Jafar. Development a Two-objective Simulation-Optimization Model for Optimal Design of Geometric Dimensions and Slope of the Stepped Spillway of Upstream Siah-Bisheh Dam Using NSGA-II. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2020;51(2 ):469-478. Available from: https://sid.ir/paper/363654/en

IEEE: Copy

ZAHRA SOHRABI, Javad Sarvarian, and Jafar Mamizadeh, “Development a Two-objective Simulation-Optimization Model for Optimal Design of Geometric Dimensions and Slope of the Stepped Spillway of Upstream Siah-Bisheh Dam Using NSGA-II,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 51, no. 2 , pp. 469–478, 2020, [Online]. Available: https://sid.ir/paper/363654/en

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