Optimal gate operation of a main drainage canal in a flat low-lying agricultural area using a tank model incorporated with a genetic algorithm

Le Van Chinh, Kazuaki Hiramatsu, Harada Masayoshi, Makito Mori

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5 Citations (Scopus)

Abstract

Chiyoda basin is located in Saga Prefecture in Kyushu Island, Japan. The total basin area is about 566 ha, which is a typical flat low-lying paddy-cultivated area. The main problem in this basin is the appropriate operation of drainage structures during flood events in order to avoid the local inundation that seriously damages the crop yield. This paper presents a mathematical model of a drainage system in Chiyoda basin for calculating the flood inundation and optimizing the operation of gates in a main drainage canal. The optimization of a gate operation was carried out by a genetic algorithm. The simulation process was executed using the rainfall with the return periods of 20, 50 and 100 years. The simulation results indicated that before the optimization of a gate operation, the inundation concentrates locally at some paddy tanks with a prolonged inundation time. The same situation occurred in river tanks. In the main drainage canal, there are some gates that play an important role in the drainage system. By optimizing the operation of these gates, the above issue can be solved. The result showed that the total inundation time in the paddy tanks decreased and the inundation distributed more equally.

Original languageEnglish
Pages (from-to)351-359
Number of pages9
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume51
Issue number2
Publication statusPublished - Oct 1 2006

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drainage channels
Drainage
basins
paddies
drainage systems
Japan
Islands
Rivers
crop yield
drainage
Theoretical Models
mathematical models
concentrates
rain
rivers

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

Cite this

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title = "Optimal gate operation of a main drainage canal in a flat low-lying agricultural area using a tank model incorporated with a genetic algorithm",
abstract = "Chiyoda basin is located in Saga Prefecture in Kyushu Island, Japan. The total basin area is about 566 ha, which is a typical flat low-lying paddy-cultivated area. The main problem in this basin is the appropriate operation of drainage structures during flood events in order to avoid the local inundation that seriously damages the crop yield. This paper presents a mathematical model of a drainage system in Chiyoda basin for calculating the flood inundation and optimizing the operation of gates in a main drainage canal. The optimization of a gate operation was carried out by a genetic algorithm. The simulation process was executed using the rainfall with the return periods of 20, 50 and 100 years. The simulation results indicated that before the optimization of a gate operation, the inundation concentrates locally at some paddy tanks with a prolonged inundation time. The same situation occurred in river tanks. In the main drainage canal, there are some gates that play an important role in the drainage system. By optimizing the operation of these gates, the above issue can be solved. The result showed that the total inundation time in the paddy tanks decreased and the inundation distributed more equally.",
author = "Chinh, {Le Van} and Kazuaki Hiramatsu and Harada Masayoshi and Makito Mori",
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T1 - Optimal gate operation of a main drainage canal in a flat low-lying agricultural area using a tank model incorporated with a genetic algorithm

AU - Chinh, Le Van

AU - Hiramatsu, Kazuaki

AU - Masayoshi, Harada

AU - Mori, Makito

PY - 2006/10/1

Y1 - 2006/10/1

N2 - Chiyoda basin is located in Saga Prefecture in Kyushu Island, Japan. The total basin area is about 566 ha, which is a typical flat low-lying paddy-cultivated area. The main problem in this basin is the appropriate operation of drainage structures during flood events in order to avoid the local inundation that seriously damages the crop yield. This paper presents a mathematical model of a drainage system in Chiyoda basin for calculating the flood inundation and optimizing the operation of gates in a main drainage canal. The optimization of a gate operation was carried out by a genetic algorithm. The simulation process was executed using the rainfall with the return periods of 20, 50 and 100 years. The simulation results indicated that before the optimization of a gate operation, the inundation concentrates locally at some paddy tanks with a prolonged inundation time. The same situation occurred in river tanks. In the main drainage canal, there are some gates that play an important role in the drainage system. By optimizing the operation of these gates, the above issue can be solved. The result showed that the total inundation time in the paddy tanks decreased and the inundation distributed more equally.

AB - Chiyoda basin is located in Saga Prefecture in Kyushu Island, Japan. The total basin area is about 566 ha, which is a typical flat low-lying paddy-cultivated area. The main problem in this basin is the appropriate operation of drainage structures during flood events in order to avoid the local inundation that seriously damages the crop yield. This paper presents a mathematical model of a drainage system in Chiyoda basin for calculating the flood inundation and optimizing the operation of gates in a main drainage canal. The optimization of a gate operation was carried out by a genetic algorithm. The simulation process was executed using the rainfall with the return periods of 20, 50 and 100 years. The simulation results indicated that before the optimization of a gate operation, the inundation concentrates locally at some paddy tanks with a prolonged inundation time. The same situation occurred in river tanks. In the main drainage canal, there are some gates that play an important role in the drainage system. By optimizing the operation of these gates, the above issue can be solved. The result showed that the total inundation time in the paddy tanks decreased and the inundation distributed more equally.

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