چکیده مقاله
Surface water basins play a crucial role in managing urban runoff and mitigating its hydrological and pollution impacts on downstream waters Suspended sediment concentration SSC is vital for understanding river dynamics and environmental hydraulic management; however, accurately estimating it is challenging due to complex hydraulic, hydrologic, and sediment interactions This study investigates the effect of the Froude number on the vertical distribution of SSC in a 6 meter laboratory flume using silica particles 0 075 to 0 15 mm Flow velocity was measured using an Acoustic Doppler Velocimeter ADV , and sediment samples were collected at different depths using a siphon sampler Dimensionless parameters C/Co and z/h were employed to analyze concentration profiles under different Froude numbers 0 20, 0 27, and 0 30 The results revealed distinct SSC patterns: at Froude numbers of 0 20 and 0 27, upstream profiles resembled Rouse distributions with high concentrations near the bed At a Froude number of 0 30, increased turbulence led to the upward transport of coarser particles These findings highlight the critical role of the Froude number in shaping SSC profiles and underscore the need for improved models to predict sediment transport more accurately
کلیدواژهها
نویسندگان
Reza Arabshahi
M Sc Graduate, Faculty of Civil Engineering, University of Tehran, Tehran, Iran
Mohammad Ali Bahrabadi
M Sc Student, Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran
سیدعلی اکبر صالحی نیشابوری
Professor, Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran
Roozbeh Baradaran Anvari
M Sc Student, Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran
شیوه ارجاع
Arabshahi, Reza and Bahrabadi, Mohammad Ali and Salehi Neyshabouri, Seyed Ali Akbar and Baradaran Anvari, Roozbeh,1404,Experimental Investigation of the Effect of Froude Number on the Vertical Distribution of Suspended Sediment Concentration in a Laboratory Flume,14th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات چهاردهمین کنگره بین المللی مهندسی عمران29 مهر 1404 · تهران