Results 1 to 10 of about 173,826 (185)
Dynamic simulation of dispersed gas-liquid two-phase flow using a discrete bubble model. [PDF]
, 1997 In this paper a detailed hydrodynamic model for gas-liquid two-phase flow will be presented. The model is based on a mixed Eulerian-Lagrangian approach and describes the time-dependent two-dimensional motion of small, spherical gas bubbles in a bubble ...
Delnoij, E. +3 more
core +18 more sources
Investigation of Operating Parameters’ Effects on Bubble Characteristics in a Co-Current Downflow Bubble Column [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2022 Bubble columns are frequently employed as multiphase reactors and gas-liquid contactors. In the bubble column, gas is dispersed into the liquid phase. The dispersion of gas into a liquid is the function of bubble size and its distribution.
Rohit Meshram +3 more
doaj +1 more source
Remote Sensing, 2022 Bubble plumes, as main manifestations of seabed gas leakage, play an important role in the exploration of natural gas hydrate and other resources. Multibeam water column images have been widely used in detecting bubble plume targets in recent years ...
Junxia Meng, Jun Yan, Jianhu Zhao
doaj +1 more source
A Hydrodynamic Study in a Sieve Plate Sectionalized Bubble Column [PDF]
Engineering and Technology Journal, 2011 The sectionalization of conventional bubble columns to tray bubble column by perforated trays has been used in chemical, biochemical, and petroleum processes as an effective way to improve the gas-liquid contacting efficiency, and reduce liquid ...
Burhan Sadeq Abdulrazzaq
doaj +1 more source
Fluids, 2020 The present study used a sparged bubble column to study the mixing of a passive scalar under bubble-induced diffusion. The effect of gas superficial velocity (up to 69 mm/s) and external vertical vibrations (amplitudes up to 10 mm, frequency <23 Hz ...
Shahrouz Mohagheghian +2 more
doaj +1 more source
Fluid Dynamic in Bubble Columns with Heat Exchanger Internals [PDF]
Engineering and Technology Journal, 2014 The effects of vertical cooling internals on the gas hydrodynamics was studied in gas-liquid system (bubble columns) for column diameters, 15 and 30 cm in the absence and presence of internals (the % occluded area by internals 5, 10, and 20%).
Burhan Sadeq Abdulrazzaq
doaj +1 more source
EXPERIMENTAL STUDY OF LIQUID DISPERSION IN BUBBLE COLUMN
Diyala Journal of Engineering Sciences, 2008 The main object of this study is to investigate the influence of column diameter and superficial gas velocity on liquid phase dispersion coefficients (axial and radial dispersion coefficients), mixing times, gas holdup, and bubble dynamics (bubble ...
Hayder Abd Al-kaream Muhsin
doaj +1 more source
Chemical Engineering Journal Advances, 2021 The gas dispersion state within the bubble columns and reactors greatly affects their performance. A bubble sampler is a useful device to measure gas dispersion in the operating bubble columns and reactors as it has an adjustable sampling part that ...
Changzhi Bai +3 more
doaj +1 more source
Bubble kinetics in a steady-state column of aqueous foam [PDF]
, 2006 We measure the liquid content, the bubble speeds, and the distribution of bubble sizes, in a vertical column of aqueous foam maintained in steady-state by continuous bubbling of gas into a surfactant solution.
D. J Durian +9 more
core +3 more sources
Computation, 2017 A novel computational fluid dynamics-population balance model (CFD-PBM) for the simulation of gas mixing in activated sludge (i.e., an opaque non-Newtonian liquid) in a bubble column is developed and described to solve the problem of measuring the ...
Le Wang +3 more
doaj +1 more source