Results 11 to 20 of about 4,729 (241)

Flow Characteristics in Vertical Shaft Spillway with Varied Inlet Shapes and Submergence States

open access: yesTikrit Journal of Engineering Sciences
A spillway is an essential hydraulic structure that discharges excessive water, especially during floods from upstream to downstream of the dam. A shaft spillway is sometimes used when a limited area is available. This study used four physical models of
Intisar A. Hady, Ahmed Y. Mohammed
doaj   +2 more sources

Passive Flow Control in Boundary Layer Ingesting Semi Submerged Inlet [PDF]

open access: yes51st AIAA/SAE/ASEE Joint Propulsion Conference, 2015
In this study, effect of vortex generators used as passive flow control devices in a boundary layer ingesting semi submerged inlet is computationally investigated with the commercially available flow solver Fluent 14.0. Studied intake duct exposed to high level of boundary layer ingestion such that ingested boundary layer thickness corresponds to the ...
Can Kucuk, U., Ugras Baran, O., Uzol, O.
openaire   +5 more sources

Characteristics of Water Surface Variation around Double-Breaking Type Artificial Reef [PDF]

open access: yes한국해양공학회지, 2019
A submerged breakwater is one of the coastal structures used to reduce wave energy and coastal erosion. However, a submerged breakwater has a negative aspect in that a strong rip current occurring around an open inlet due to a difference in mean water ...
Young-Seop Shin, Seong-Dae Lee
doaj   +1 more source

Numerical simulation of steam submerged jet and condensation

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] During the discharging of ship-used steam power,steam jet condensation was a common physical process. In order to fully grasp the fundamental physical phenomena within steam submerged jet and condensation under open space,CFD simulation with
Wang Guanghuai   +4 more
doaj   +1 more source

Mixing Enhancement of a Passive Micromixer with Submerged Structures

open access: yesMicromachines, 2022
A passive micromixer combined with two different mixing units was designed by submerging planar structures, and its mixing performance was simulated over a wider range of the Reynolds numbers from 0.1 to 80.
Makhsuda Juraeva, Dong Jin Kang
doaj   +1 more source

Active ways to control jet flows [PDF]

open access: yesE3S Web of Conferences
Jet flows with active control methods are numerically studied. Axial, flapping and helical oscillations of the inlet velocity profile, transverse vibrations of the inlet boundary, and harmonic disturbances from sources located on the lateral boundaries ...
Yakovenko Sergey   +2 more
doaj   +1 more source

Air horizontal jets into quiescent water

open access: yesNuclear Engineering and Technology, 2023
Gas submerged jet is an outstanding thermohydraulic phenomenon in pool scrubbing of fission products during a severe nuclear accident. Experiments were performed on the hydraulic characteristics in the ranges of air mass flux 0.1–1400 kg/m2s and nozzle ...
Weichao Li   +4 more
doaj   +1 more source

Research on Unsteady Flow Field Characteristics of Submerged Inlet under Large Maneuver Condition [PDF]

open access: yesHangkong bingqi
In order to explore the differences in steady-state and transient aerodynamic characteristics of submerged inlets during high maneuvering flight, this study focuses on cruise missile and adopts CFD numerical methods to conduct steady-state and transient ...
Feng Yuhua, Zhang Junyao, Wang Limin, Mi Baigang
doaj   +1 more source

Field test and CFD of performance of undershot water wheel in snow drainageway

open access: yesNihon Kikai Gakkai ronbunshu, 2020
The present paper describes the performance of a micro undershot water wheel for the power generation in a snow drainageway with the Froude number of 2 to 3. In order to optimize the installation conditions of the undershot water wheel and its arc blade,
Yoshitaka KIKUCHI   +2 more
doaj   +1 more source

IODINE REMOVAL EFFICIENCY IN NON-SUBMERGED AND SUBMERGED SELF-PRIMING VENTURI SCRUBBER

open access: yesNuclear Engineering and Technology, 2013
The objective of this conducted research is to study the iodine removal efficiency in a self-priming venturi scrubber for submerged and non-submerged operating conditions experimentally and theoretically.
MAJID ALI   +5 more
doaj   +1 more source

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