Investigating the pressure fluctuations of hydraulic jump in an abrupt expanding stilling basin with roughened bed

MN Hasani, K Nekoufar, M Biklarian, M Jamshidi… - Water, 2022 - mdpi.com
Stilling basins with sudden expansions are one of the energy dissipation structures. In the
hydraulic jump, pressure fluctuations cause significant damages in stilling basins by cavity …

Laboratory investigation of hydraulic jump in divergent-convergent conversions

MHJ Abnavi, R Mohammadpour, MK Beirami - Flow Measurement and …, 2023 - Elsevier
Hydraulic jump is used as a significant energy-dissipater downstream of hydraulic
structures, spillways, gates, and chutes. The novelty of this study is the simultaneous use of …

The S-jump's characteristics in the rough sudden expanding stilling basin

R Daneshfaraz, M MajediAsl, R Mirzaee… - AUT Journal of Civil …, 2020 - ajce.aut.ac.ir
One way to dissipate energy is to use sudden expansion stilling basin structures
downstream of spillway, gates and chute. The present study is aimed to study influences of …

[PDF][PDF] Predicting the energy dissipation of a rough sudden expansion rectangular stilling basins using the SVM algorithm

R Daneshfaraz, E Aminvash, R Mirzaee… - Journal of Applied …, 2021 - arww.razi.ac.ir
In this research, the performance of support vector machine in predicting relativeenergy
dissipation in non-prismatic channel and rough bed with trapezoidalelements has been …

[PDF][PDF] Experimental study of hysteretic behavior of supercritical regime on hydraulic parameters of flow against gabion contraction

R Daneshfaraz, E Aminvash, A Najibi - Iranian Journal of Soil and …, 2022 - ijswr.ut.ac.ir
In the present study, the hydraulic characteristics of the flow and the phenomenon of flow
hysteresis with the supercritical regime, which can appear in the vicinity of the additional …

[HTML][HTML] Experimental investigation of supercritical flow energy dissipation in sudden contraction with wall roughness

R Daneshfaraz, A Najibi - Journal of Hydraulics, 2021 - jhyd.iha.ir
Introduction One of the most important problems in hydraulic structures is the kinetic energy
of the flow. If this destructive energy is not controlled, the structures downstream will be …

بررسی آزمایشگاهی پرش هیدرولیکی در تنگ شدگی ناگهانی با بستر زبر

دانشفراز, نجیبی - مهندسی عمران مدرس, 2022‎ - mcej.modares.ac.ir
یکی از مهمترین معضلاتی که در پاییندست سازههای هیدرولیکی وجود دارد، انرژی مخرب جنبشی
جریان است. همواره کارشناسان سعی در طراحی مناسب و کاهش اثر این نیروی مخرب در پاییندست سازه …

[PDF][PDF] Experimental investigation of hydraulic jump in Hexagonal Stilling Basin

MH Jafari Abnavi, R Mohammadpour… - عس ید دنمورب رد ناسحا و بسن …‎ - jise.scu.ac.ir
Hydraulic jump is used as an important energy dissipator phenomenon downstream of
hydraulic structures such as spillways, gates, and chutes. The US Bureau of Reclamation …

Experimental Determination of Pressure Fluctuations in Stilling Basin with Sudden Expanding and Roughened Bed

M Naemhasani, K Nekoufar, M Biglarian… - Environment and Water …, 2022 - jewe.ir
The effect of fluctuating pressures due to turbulence on the hydraulic jump causes significant
damage to the relaxation pool. Moreover, the presence of roughness in the bed changes the …

[PDF][PDF] Experimental Determination of Pressure Fluctuations in Stilling Basin with Sudden Expanding and Roughened Bed

MN Hasani, K Nekoufar, M Biklaryan, M Jamshidi - jewe.ir
Stilling basins with sudden expansions are one of the energy-dissipater structures. The
application of cross-sectional expansion in channels would be a useful way to ensure the …