Results 31 to 40 of about 55,812 (258)

Comparison of Different Turbulence Models for Numerical Simulation of Pressure Distribution in V-Shaped Stepped Spillway [PDF]

open access: yes, 2017
V-shaped stepped spillway is a new shaped stepped spillway, and the pressure distribution is quite different from that of the traditional stepped spillway.
Zhaoliang Bai, Jianmin Zhang
core   +1 more source

Experimental and numerical simulation of flow over stepped spillways

open access: yesApplied Water Science, 2018
Stepped spillways are used in the construction of dams, river engineering and soil conservation projects. Energy dissipation in this structure due to the presence of several steps is high, so the construction costs for stilling basin are reduced.
Farzin Salmasi, Aylar Samadi
doaj   +1 more source

Numerical Simulation of Cavitation Phenomenon in the Stepped Spillway with Fluent Software [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی, 2020
In the present research, the effects of different turbulence models and cavitation phenomenon in the stepped spillway of Siah Bisheh dam was investigated using the FLUENT model. Three standard K-Epsilon, Renormalization Group (RNG) K-Epsilon, and K-Omega
Farideh Karimi Pirmoosaei   +1 more
doaj   +1 more source

Experimental study of skimming flow on the stepped spillway in the non-aerated area using PIV [PDF]

open access: yesهیدرولیک
Understanding the flow behavior over stepped spillways has been the subject of many previous studies. Most of the studies conducted on stepped spillways have been in skimming flow conditions and the aerated parts of the spillway.
کامیاب حبیبی   +2 more
doaj   +1 more source

Experimental method to predict scour characteristics downstream of stepped spillway equipped with V-Notch end sill

open access: yesAlexandria Engineering Journal, 2021
To protect the dam body and downstream area, spillways should be built. Because the difference in water level upstream and downstream spillways is usually very big, energy dissipation facilities should be introduced.
Mohamed El-Sayed El-Mahdy
doaj   +1 more source

Comparison of stepped and smooth spillway effects on stream reaeration [PDF]

open access: yes, 2021
The oxygen transfer at a hydraulic structure happens by self-aeration through the spillway and by flow aeration in the hydraulic jump downstream of the hydraulic structure.
Aras, Egemen, Berkun, Mehmet
core  

Analisis Kedalaman Gerusan Lokal (Local Scouring) di Hilir Bangunan pelimpah (Stepped Modified Spillway) dengan Model Fisik 2D [PDF]

open access: yes, 2021
Spillway is a hydraulic structure whose existence is very important because it is built to release excess water or flood discharge that cannot be accommodated in the dam.
kuncoro, wahyu hadi   +3 more
core   +1 more source

Performance of the Gomaspan Dam's Stepped Spillway Against Cavitation using CFDcity

open access: yesPolytechnic Journal, 2023
This study aims to determine how well the stepped spillway at Gomaspan dam performs in terms of cavity index. For this purpose, a computational fluid dynamics (CFD) code called FLUENT is used.
Abdulla A. Abo
doaj   +1 more source

Air-water flows on stepped spillways with inclined steps [PDF]

open access: yesAustralasian Fluid Mechanics Conference (AFMC), 2020
Stepped spillways have been constructed worldwide and the overflow is characterised by intense turbulent dissipation and strong self-aeration. The current study investigated experimentally the two-phase flow properties on stepped chutes equipped with inclined downward steps.
Yvan Arosquipa Nina   +2 more
openaire   +2 more sources

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

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