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Analysis of Thermal Stratification of Karkheh Dam using Two-Dimensional CE-QUAL-W2 Model
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Saghi Bagherzadeh   , Mahnaz Ghaeini-Hessaroeyeh , Kourosh Qaderi |
| Shahid Bahonar University of Kerman , mghaeini@uk.ac.ir |
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Abstract: (658 Views) |
Lakes and reservoirs are important sources of surface water that are used for various purposes such as drink, agriculture, industry and etc. One of the most important factors that affects the water quality of the reservoirs is thermal stratification. In this research, a simulation approach based on CE-QUAL-W2 qualitative models and the Water Cycle Algorithm (WCA) method have been used for qualitative modeling of Karkheh dam reservoir. In order to investigate the thermal stratification, CE-QUALW2 qualitative model has been used for simulating temperature during the years 2014 to 2015. Then, for calibration of parameters affecting temperature, a computer model based on the WCA algorithm was developed. The efficiency of the model was investigated by statistical indicators such as correlation coefficient (R2), root mean square error (RMSE), and mean Basic Error (MBE). The values of R2 based on the WCA algorithm on 3 August, 26 August, and 16 September (183, 206, and 227) were obtained 0.95, 0.95, and 0.99, respectively. Also, the RMSE and MBE values were equal to 1.87, 1.33, and 1.21 and -0.69, 0.84 and 0.68, respectively. It can be concluded that the WCA algorithm has great accuracy in the estimation of the parameters affecting the temperature.
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| Keywords: CE-QUALW2 model, Calibration, Thermal Stratification, Water Cycle Algorithm |
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Full-Text [PDF 1570 kb]
(135 Downloads)
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Type of Study: Research |
Subject:
تجهیزات مکانیکی و هیدرومکانیک
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