Abstract:
Dams and reservoirs are constructed in rivers for multipurpose. Hydropower, and irrigation, are predominant. Although irrigated agriculture in Sudan produces about 50 % of the total crop production, yet it is associated with painstaking of removing sediments from the irrigation network system. Sedimentation problem endangers operation performance of Reseires Dam Reservoir. Furthermore Roseires Dam Reservoir is suffering from downstream river bank erosion, insufficient irrigation water for the agricultural schemes, with problems in power generation.
The objective of this study is to assess the relations of sediment and water used for irrigation. The objective is extended to indicate the interaction among discharge sediment and power generation.
To solve these problems and fulfill these objectives the researcher conducted dimensional analysis using Buckingham pi theorem and SPSS models, using both simple and multiple correlation. The software name of SPSS originally stood for Statistical Package for the Social Sciences. The simple correlation gave acceptable results with high correlation coefficients. Complete set of dimensionless groups were obtained using the rules of dimensionless analysis and theory of models in the multiple regression correlation. The results obtained clearly defined the interationship among the four groups in a single equation.
To reveal the interrelationship among discharge, sediment, generated power and irrigated areas, each dimensionless variable was put as independent variable on the left hand side of the equation and the other three on the right hand side to reveal the interaction and the degree of dependence. Examination of the results indicated good correlation with acceptable error
