Results 21 to 30 of about 3,079,355 (280)

The Fluidization Backwash Method of Filter Beds by Air-water Bubbly Flow

open access: yesJournal of Water and Environment Technology, 2020
A novel fluidization backwash method by the air-water bubbly flow with air bubbles of various sizes has been proposed for rapid filters. The backwash efficiency is closely related to the bubble wake motion.
Masao Kuroda   +4 more
doaj   +1 more source

Energy spectra of buoyancy-driven bubbly flow in a vertical Hele-Shaw cell

open access: yesFrontiers in Physics, 2023
We present direct numerical simulations (DNS) study of confined buoyancy-driven bubbly flows in a Hele-Shaw setup. We investigate the spectral properties of the flow and make comparisons with experiments.
Rashmi Ramadugu   +2 more
doaj   +1 more source

Experimental Study on Variations in Behavior of Green Water and Flow Kinematics on Deck with Various Flare Angles

open access: yes한국해양공학회지, 2018
In this study, a series of experiments were performed to investigate the variations in the behavior of green water generation and the flow kinematics of bubbly flow on deck with various flare angles.
Gang Nam Lee   +3 more
doaj   +1 more source

Turbulent bubbly flow in pipe under gravity and microgravity conditions [PDF]

open access: yes, 2012
Experiments on vertical turbulent flow with millimetric bubbles, under three gravity conditions, upward, downward and microgravity flows (1g, -1g and 0g), have been performed to understand the influence of gravity upon the flow structure and the phase ...
Colin, Catherine   +2 more
core   +1 more source

Slug Regime Transitions in a Two-Phase Flow in Horizontal Round Pipe. CFD Simulations

open access: yesApplied Sciences, 2020
The main objective of the study is to propose a technical solution integrated into the pipeline for the transition of the flow regime from slug to bubbly two-phase flow.
Vitaly Sergeev   +4 more
doaj   +1 more source

Analysis of Fluid-Structure Coupling Vibration Characteristics of Pipeline Transporting Bubbly Fluid Medium: With Application to Luxury Passenger Ship Life Area Pipeline

open access: yesShock and Vibration, 2023
When pipelines are transporting bubbly fluid medium, due to the coalescence and breakage behaviours of the bubbles, the pressure distribution at the wall is not uniform and the structure response is more complex.
Chen Chen, Hong Zhou, Lei Zhang
doaj   +1 more source

Modeling of a homogenous gas-water two phase flow through a Venturi and vertical pipe (A prediction of pressure drop sign change in two phase flow) [PDF]

open access: yes, 2007
In two phase flow, differential pressures technique can be used to measure the volume fraction of the gas phase. In the case where no restriction is available in the pipeline, the differential pressure technique can be used only in vertical or inclined
Hasan, Abbas, Lucas, Gary
core   +4 more sources

Vortex Simulation of the Bubbly Flow around a Hydrofoil

open access: yesInternational Journal of Rotating Machinery, 2007
This study is concerned with the two-dimensional simulation for an air-water bubbly flow around a hydrofoil. The vortex method, proposed by the authors for gas-liquid two-phase free turbulent flow in a prior paper, is applied for the simulation.
Tomomi Uchiyama, Tomohiro Degawa
doaj   +1 more source

Strong interactions bubble/bubble and bubble/flow [PDF]

open access: yes, 1994
The study of bubble dynamics in non-uniform flow fields is fundamental to the ability to predict or explain any cavitation effects in real flow fields. In this presentation we describe our recent contributions towards the fundamental understanding of bubble dynamics in non-uniform flow fields when large bubble deformations and bubble interactions are ...
openaire   +1 more source

Reaction Systems for Bubbly Flows [PDF]

open access: yesEuropean Journal of Inorganic Chemistry, 2018
Reactive bubbly flows are at the heart of multiphase flows which are a major topic in chemical engineering since many bulk chemicals are produced in bubbly flows. However, the factors determining product yield and selectivity are often subject of complicated mass transfer effects.
Paul, Melanie   +5 more
openaire   +2 more sources

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