Results 31 to 40 of about 135,830 (309)

Two-phase numerical study of the flow field formed in water pump sump: influence of air entrainment [PDF]

open access: yes, 2009
In a pump sump it is imperative that the amount of non-homogenous flow and entrained air be kept to a minimum. Free air-core vortex occurring at a water-intake pipe is an important problem encountered in hydraulic engineering.
Abustam, Effendi   +28 more
core   +1 more source

Horizontal Stratified Air–Foam–Water Flows: Preliminary Modelling Attempts with OLGA

open access: yesFluids, 2023
Water accumulation is a major problem in the flow assurance of gas pipelines. To limit liquid loading issues, deliquification by means of surfactant injection is a promising alternative to the consolidated mechanical methods.
William Ferretto   +4 more
doaj   +1 more source

Patterns of a slow air–water flow in a semispherical container [PDF]

open access: yesEuropean Journal of Mechanics - B/Fluids, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adnan Balci   +3 more
openaire   +2 more sources

Introduction to air-water flows [PDF]

open access: yes, 2018
For many hydraulic structures, safe operation can only be achieved if not only the characteristics of the water flow are considered, but due attention is also given to the simultaneous movement of air in the system. Although the difference in specific weight of air and water is so large that they are usually well separated by a sharp interface, a ...
openaire   +3 more sources

Fluctuating Characteristics of Two-Phase Air-Water Slug Flow in Pressurized Pipelines [PDF]

open access: yesآب و فاضلاب, 2009
Two-phase gas-liquid flows occur in a wide variety of situations, e.g., in chemical processing, power generation, water supply systems, and petroleum industry. The study of two-phase fluid flows is of great importance in hydraulic engineering.
Abdorreza Kabiri-Samani
doaj  

Numerical Simulation of Poly-Dispersed Bubbly Flow Using a Multi-Fluid Model

open access: yesJournal of Fluid Science and Technology, 2007
Numerical methods for predicting poly-dispersed bubbly flows in bubble columns are indispensable in the design of bubble column reactors. The objectives of the present study are (1) to experimentally investigate the effects of a bubble size distribution ...
Munenori MAEKAWA   +3 more
doaj   +1 more source

Modelling rollers for shallow water flows [PDF]

open access: yes, 2013
Hydraulic jumps, roll waves or bores in open channel flows are often treated as singularities by hydraulicians while slowly varying shallow water flows are described by continuous solutions of the Saint-Venant equations. Richard & Gavrilyuk (J.
Thual, Olivier
core   +1 more source

Quantitative observation of co-current stratified two-phase flow in a horizontal rectangular channel

open access: yesNuclear Engineering and Technology, 2015
The main objective of this study is to investigate experimentally the two-phase flow characteristics in terms of the direct contact condensation of a steam–water stratified flow in a horizontal rectangular channel. Experiments were performed for both air–
Seungtae Lee   +3 more
doaj   +1 more source

Large probe arrays for measuring mean and time dependent local oil volume fraction and local oil velocity component distributions in inclined oil-in-water flows

open access: yes, 2013
Arrays of dual-sensor and four-sensor needle conductance probes have been used to measure the mean and time dependent local properties of upward inclined, bubbly oil-in-water flows (also known as dispersed oil-in-water flows) in a 153mm diameter pipe ...
Lucas, Gary, Zhao, X.
core   +1 more source

Effects of Flow Regimes on Maximum Pressure in Offshore Pipelines [PDF]

open access: yesمهندسی منابع آب, 2019
One of the most important factors in pipeline hydraulics and its protection against probable damages is keeping the pressure in a specific limit and also knowing how the pressure functions in the pipe through the pipeline route.
Zahra Ghadampour, Mohammad sadegh Narges
doaj  

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