suspended sediment effects on submerged hydraulic jump characteristics
نویسندگان
چکیده
abstract in this study, the effect of suspended load transport on the characteristics of submerged hydraulic jump (shj) in a rectangular channel was investigated experimentally. sediment concentration and jet froude numbers in the range of 0.424%-16.15% and 1.93-4.96, respectively, were considered. tow grain size 0.15 and 0.03 mm were used in the experiments. characteristics of submerged hydraulic jump including velocity and concentration distribution, length of jump, the submergence depth on the gate and the energy dissipation were studied. the results showed that the submergence depth on the gate and the energy dissipation are constant by increasing of sediment concentration. the length of the jump at the presence of suspended sediment is smaller than those due to clear water flow. also, suspended sediment by decreasing of flow resistance is made to decrease flow velocity.
منابع مشابه
Characteristics of Hydraulic Jump
The effect of an abruptly expanding channel on the main characteristics of hydraulic jump is considered experimentally. The present study was made for supercritical flow of Froude number varying between 2 to 9 and approach to expanded channel width ratios 0.4, 0.5, 0.6 and 0.8. Physical explanations of the variation of these characteristics under varying flow conditions are discussed based on t...
متن کاملMonitoring baseline suspended sediment in forested basins: the effects of sampling on suspended sediment rating curves
Rating curves are widely used for directly assessing changes in the suspended sediment delivery process and indirectly for estimating total yields. Four sampling methods were simulated over a 31-day record of suspended sediment from the North Fork of the Mad River near Korbel, California. The position and size of the four groups of plotted slope/intercept pairs indicated differences in bias and...
متن کاملevaluate and develop new relationships to estimate submerged hydraulic jump characteristics
in this research, in order to develop new relationships with reasonable accuracy for estimation of the submerged hydraulic jump characteristics, a study has been conducted experimentally. experiments have been done in a rectangular channel with a length of 9 m, a width of 0.5 m and a depth of 0.45 m. froude numbers in these tests range from 3.5 to 11.5 and between submergence ratios of 0.1 t...
متن کاملExperimental Study of the Effect of Gabion Structure on the Energy Dissipation of Submerged Hydraulic Jump Downstream of Ogee Spillway
In the last decade, the use of gabion structures in hydraulic engineering for stabilizing the structure due to its high density and weight has become widespread. Also, the material's roughness and porosity cause it to be used in energy dissipation and drainage projects. This study evaluates the relative energy dissipation of gabion structures downstream of the ogee spillway in the conditions of...
متن کاملThe Effect of Six-Legged Concrete Elements on Hydraulic Jump Characteristics
In the present study, the six legged concrete (SLC) elements are placed at the bed of a flume downstream of a chute in different layouts, densities and number of longitudinal rows of SLC elements. Each test was run for different flow conditions (Froude numbers ranged 5.3 to 8.1). During each test, the water surface profile, the roller length and the jump length measured. Applying the experimen...
متن کاملEffects of Wrack Deposits on Sediment Characteristics
The amount of wrack deposited and retained on a beach may be affected by the beach’s morphology. Conversely, wrack deposits have the potential to modify sediment dynamics on the beach face through accumulation and erosion of sediments around wrack deposits, and the incorporation of organic matter into beach sands. The aims of this chapter were thus to determine whether beach morphology differed...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
آب و خاکجلد ۲۴، شماره ۵، صفحات ۰-۰
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023