Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River Basin
The relationship between water resources supply and demand is very complex and exhibits nonlinear characteristics, which leads to fewer models that can adequately manage the dynamic evolution process of the water resources supply-demand system. In this paper, we propose a new four-dimensional dynami...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2014/171793 |
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| author | Chongli Di Xiaohua Yang |
| author_facet | Chongli Di Xiaohua Yang |
| author_sort | Chongli Di |
| collection | DOAJ |
| description | The relationship between water resources supply and demand is very complex and exhibits nonlinear characteristics, which leads to fewer models that can adequately manage the dynamic evolution process of the water resources supply-demand system. In this paper, we propose a new four-dimensional dynamical model to simulate the internal dynamic evolution process and predict future trends of water supply and demand. At the beginning, a new four-dimensional dynamical model with uncertain parameters is established. Then, the gray code hybrid accelerating genetic algorithm (GHAGA) is adopted to identify the unknown parameters of the system based on the statistic data (1998–2009). Finally, the dynamical analysis of the system is further studied by Lyapunov-exponent, phase portraits, and Lyapunov exponent theory. Numerical simulation results demonstrate that the proposed water resources supply-demand system is in a steady state and is suitable for simulating the dynamical characteristics of a complex water supply and demand system. According to the trends of the water supply and demand of several nonlinear simulation cases, the corresponding measures can be proposed to improve the steady development of the water resources supply-demand system. |
| format | Article |
| id | doaj-art-368f435e344e4300b7b715ec308dbead |
| institution | Kabale University |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-368f435e344e4300b7b715ec308dbead2025-02-03T01:12:31ZengWileyJournal of Applied Mathematics1110-757X1687-00422014-01-01201410.1155/2014/171793171793Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River BasinChongli Di0Xiaohua Yang1State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, ChinaState Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, ChinaThe relationship between water resources supply and demand is very complex and exhibits nonlinear characteristics, which leads to fewer models that can adequately manage the dynamic evolution process of the water resources supply-demand system. In this paper, we propose a new four-dimensional dynamical model to simulate the internal dynamic evolution process and predict future trends of water supply and demand. At the beginning, a new four-dimensional dynamical model with uncertain parameters is established. Then, the gray code hybrid accelerating genetic algorithm (GHAGA) is adopted to identify the unknown parameters of the system based on the statistic data (1998–2009). Finally, the dynamical analysis of the system is further studied by Lyapunov-exponent, phase portraits, and Lyapunov exponent theory. Numerical simulation results demonstrate that the proposed water resources supply-demand system is in a steady state and is suitable for simulating the dynamical characteristics of a complex water supply and demand system. According to the trends of the water supply and demand of several nonlinear simulation cases, the corresponding measures can be proposed to improve the steady development of the water resources supply-demand system.http://dx.doi.org/10.1155/2014/171793 |
| spellingShingle | Chongli Di Xiaohua Yang Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River Basin Journal of Applied Mathematics |
| title | Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River Basin |
| title_full | Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River Basin |
| title_fullStr | Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River Basin |
| title_full_unstemmed | Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River Basin |
| title_short | Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River Basin |
| title_sort | modeling and dynamical analysis of the water resources supply demand system a case study in haihe river basin |
| url | http://dx.doi.org/10.1155/2014/171793 |
| work_keys_str_mv | AT chonglidi modelinganddynamicalanalysisofthewaterresourcessupplydemandsystemacasestudyinhaiheriverbasin AT xiaohuayang modelinganddynamicalanalysisofthewaterresourcessupplydemandsystemacasestudyinhaiheriverbasin |