Results 11 to 20 of about 29,070 (268)
Rudarsko-geološko-naftni Zbornik, 2022 The effect of initial bubble diameter on the bubble motion pattern in a flotation column has been studied by the twophase computational fluid dynamics (CFD) method. The two-phase simulations have been done using the volume of a fluid (VOF) model in ANSYS®
Narjes Khorasanizadeh +2 more
doaj
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
Numerical Simulation of Hold-up and Velocity Profiles for Two-phase Developed Flows in a Column
Chemical Engineering Transactions, 2021 The purpose of this article is to simulate and analyse two-phase fluid dynamics in a bubble column, through two different numerical approaches, in a fast and effective way, to minimize project costs and increase productivity.
Pâmela Palhares, Reginaldo Guirardello
doaj +1 more source
Non-invasive imaging of shallow bubble columns using electrical capacitance tomography
Journal of Saudi Chemical Society, 2010 This paper deals with application of non-invasive electrical capacitance tomography to study the hydrodynamics of shallow bed bubble columns. Two bubble columns with different height to diameter ratio were used.
Waheed A. Al-Masry +3 more
doaj +1 more source
Journal of Chemical and Petroleum Engineering, 2015 Bubble columns are gas- liquid contactors that are widely used in chemical and bio- chemical industries. High mixing that result in high heat and mass transfer rates are amongst their advantages.
Rahbar Rahimi, Somayeh Hajghani
doaj +1 more source
Development of modeling and simulation of bubble‐liquid hydrodynamics in bubble column
Energy Science & Engineering, 2020 In the present work, the investigation on strategies to alleviate the cell death in terms of bubble‐liquid two‐phase hydrodynamics in bubble column was performed using the modeling and numerical simulation approaches. A multifluid bubble‐liquid turbulent
Yang Liu, Li Zhang, Lixing Zhou
doaj +1 more source
Chemical Engineering Transactions, 2013 Bubble column reactors are frequently applied to chemical plants and other industrial plants. To elucidate the practical properties of the bubble columns, the heat and mass transfer phenomena in consideration of the average bubble diameters and average ...
Y. Mizushima, T. Saito
doaj +1 more source
KAGAKU KOGAKU RONBUNSHU, 2001 気泡塔の流動特性に及ぼす油分分散の影響について実験的に検討した．油分の種類および濃度を変えて水道水に分散させ，気泡の流動状態および油分分散を観察し，油滴径分布・ガスホールドアップおよび液相基準物質移動容量係数を測定した．液中に安定に分散する小さな油滴が流動特性に影響する．ガスホールドアップは水道水の場合より高く，容量係数は低くなる．これらのことより，油分分散系では物質移動係数が低下すると推察される．
Bando, Yoshiyuki +5 more
openaire +1 more source
Engineering Applications of Computational Fluid Mechanics, 2017 In this paper, the hydrodynamics of a bubble column is investigated numerically using the discrete bubble model, which tracks the dispersed bubbles individually in a liquid column.
Amjad Asad +2 more
doaj +1 more source
ChemEngineering, 2018 Vertical vibration is known to cause bubble breakup, clustering and retardation in gas-liquid systems. In a bubble column, vibration increases the mass transfer ratio by increasing the residence time and phase interfacial area through introducing kinetic
Shahrouz Mohagheghian +3 more
doaj +1 more source