THREE-DIMENSIONAL SIMULATION OF DISSOLVED OXYGEN AND THERMAL STRATIFICATION IN ORDER TO ADAPTING THE DAMS TO ENVIRONMENTAL STRATEGIES (CASE STUDY: ABOLABBAS RESERVOIR)

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ZAMANI B.; FAKHERIFARD A.; MORIDI A.

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Journal: Journal of Irrigation Sciences and Engineering Year:2015 | Volume:38 | Issue:2 Page(s): 49-64

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Title

THREE-DIMENSIONAL SIMULATION OF DISSOLVED OXYGEN AND THERMAL STRATIFICATION IN ORDER TO ADAPTING THE DAMS TO ENVIRONMENTAL STRATEGIES (CASE STUDY: ABOLABBAS RESERVOIR)

Author(s)

ZAMANI B. | FAKHERIFARD A. | MORIDI A. | Issue Writer Certificate

Keywords

THREE-DIMENSIONAL MODELINGQ2

RESERVOIRQ2

HYDRODYNAMICSQ2

STRATIFICATIONQ1

WATER QUALITYQ2

ABOLABBASQ2

Abstract

In this study, a three-dimensional hydrodynamic model (ELCOM) coupled to a WATER QUALITY and ecosystem model (CAEDYM) were used to simulate limnological processes, STRATIFICATION and mixing, and prediction of the released WATER QUALITY in the proposed designed RESERVOIR in southwest Iran (Abolabbas RESERVOIR). Also, investigating and defining the appropriate outlet levels on the dam wall was the other prospective of this study. Different scenarios were analyzed and designed to simulate different conditions of drought periods in different severities. The results indicated that, in all scenarios, the RESERVOIR regulated the inflow quality parameters very well via both power plant and irrigation outlets. No hypolimnetic anoxia were observed in the RESERVOIR in normal conditions. The simulation of drought scenarios showed an overall degradation of all parameters when the drought severity increases. The drought affected the dissolved oxygen concentration directly as one of the major environmental WATER QUALITY indices. During the worst drought scenarios, the anoxia in a 40-meter bottom layer of the hypolimnion throughout the year and the anoxic outflow for 5 months were observed. In order to reduce the hypolimnetic anoxia, a scenario with a decreased bottom outlet by 10 meters below the designed level (to be 14 meters below the irrigation outlet) and hypolimnetic withdrawal was designed and simulated. While the irrigation outlet was closed, the hypolimnetic withdrawal via bottom outlet reduced the anoxic layer from 40 to 20 meters thickness and also reduced the anoxic outflow from 5 to 3 months.

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APA: Copy

ZAMANI, B., FAKHERIFARD, A., & MORIDI, A.. (2015). THREE-DIMENSIONAL SIMULATION OF DISSOLVED OXYGEN AND THERMAL STRATIFICATION IN ORDER TO ADAPTING THE DAMS TO ENVIRONMENTAL STRATEGIES (CASE STUDY: ABOLABBAS RESERVOIR). IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 38(2), 49-64. SID. https://sid.ir/paper/217137/en

Vancouver: Copy

ZAMANI B., FAKHERIFARD A., MORIDI A.. THREE-DIMENSIONAL SIMULATION OF DISSOLVED OXYGEN AND THERMAL STRATIFICATION IN ORDER TO ADAPTING THE DAMS TO ENVIRONMENTAL STRATEGIES (CASE STUDY: ABOLABBAS RESERVOIR). IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2015;38(2):49-64. Available from: https://sid.ir/paper/217137/en

IEEE: Copy

B. ZAMANI, A. FAKHERIFARD, and A. MORIDI, “THREE-DIMENSIONAL SIMULATION OF DISSOLVED OXYGEN AND THERMAL STRATIFICATION IN ORDER TO ADAPTING THE DAMS TO ENVIRONMENTAL STRATEGIES (CASE STUDY: ABOLABBAS RESERVOIR),” IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 38, no. 2, pp. 49–64, 2015, [Online]. Available: https://sid.ir/paper/217137/en

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