نوع مقاله : مقاله پژوهشی
موضوعات
عنوان مقاله English
نویسندگان English
Shuts are among the most common water transfer structures in dams, irrigation and drainage networks, alluvial waterways, and wastewater collection, treatment, and disposal systems, and are used to transfer water from one level to a lower level over a relatively long distance. Downstream, the rapids become energy-draining structures. Among the methods for reducing the size or eliminating downstream energy-dissipating structures is the use of methods to reduce the flow energy on rapids. In this study the effect of chute slope on energy dissipation has been investigated. Experimental tests were conducted in a physical model using different bed slopes (16.4, 20.6, 22.6, 25, 28.7, 35 degree) and 2 different uniform roughness heights (3.38, 38.1 mm). Total of 120 tests were conducted with flow discharges ranged between 4 and 45 (LS-1). Results show that in comparison with the smooth bed, nearly 7 to 51 percent of the flow energy was dissipated on the roughened bed chute. Maximum energy dissipation occurred for slope 16.4 degree and the minimum energy was dissipated on 35 degree.
کلیدواژهها English
