Results 21 to 30 of about 275,515 (305)

Particle image velocimetry studies of bubble growth and detachment by high speed photography [PDF]

, 1997
An understanding of bubble flows is important in the design of process equipment, particularly in the chemical and power industries. In vapour-liquid processes the mass and heat transfer between the phases is dominated by the liquid-vapour interface and ...
Dempster, William, Lothian, Lee, Oldroyd, Andrew, Stickland, Matthew   +3 more
core   +1 more source

Aqueous foams in microgravity, measuring bubble sizes

Comptes Rendus. Mécanique, 2023
The paper describes a study of wet foams in microgravity whose bubble size distribution evolves due to diffusive gas exchange. We focus on the comparison between the size of bubbles determined from images of the foam surface and the size of bubbles in ...
Pasquet, Marina, Galvani, Nicolo, Pitois, Olivier, Cohen-Addad, Sylvie, Höhler, Reinhard, Chieco, Anthony T., Dillavou, Sam, Hanlan, Jesse M., Durian, Douglas J., Rio, Emmanuelle, Salonen, Anniina, Langevin, Dominique   +11 more
doaj   +1 more source

Coarsening of Two Dimensional Foam on a Dome [PDF]

, 2012
In this paper we report on bubble growth rates and on the statistics of bubble topology for the coarsening of a dry foam contained in the narrow gap between two hemispheres.
A. E. Roth, C. D. Jones, D. J. Durian, D. Weaire, G. Kellaway, J. von Neumann   +5 more
core   +4 more sources

The reionizing bubble size distribution around galaxies [PDF]

Monthly Notices of the Royal Astronomical Society
ABSTRACT Lyman-alpha (Ly α) emission from galaxies is currently our most promising probe for constraining when and how reionization began, and thus when the first galaxies formed. At z > 7, the majority of galaxies detected with Ly α are in candidate overdensities.
Ting-Yi Lu, Charlotte A Mason, Anne Hutter, Andrei Mesinger, Yuxiang Qin, Daniel P Stark, Ryan Endsley   +6 more
openaire   +3 more sources

Flotation bubble size distribution rules with ultrasonic radiation

矿业科学学报, 2018
By a self-made ultrasonic flotation experimental device and image processing method,flotation micro-bubble size distribution and the relationship between rising velocity and size has been investigated under different ultrasonic frequencies (28 kH、60 kHz ...
Wang Weidong, Zhang Nan
doaj   +1 more source

Can airborne ultrasound monitor bubble size in chocolate? [PDF]

, 2014
Aerated chocolate products consist of solid chocolate with the inclusion of bubbles and are a popular consumer product in many countries. The volume fraction and size distribution of the bubbles has an effect on their sensory properties and manufacturing
Abramoff M D, Dukhin A S, J Vieira, J-P Sandoz, M Povey, Mylavarapu P S K, N Watson, Povey M J W, R Sundara, Strybulevych A, T Hazlehurst   +10 more
core   +1 more source

Development of Bubble Size Correlation for Adiabatic Forced Convective Bubbly Flow in Low Pressure Condition Using CFD Code

Applied Sciences, 2020
In a multidimensional two-phase flow analysis, bubble size significantly affects interfacial transfer terms such as mass, momentum, and energy. With regard to bubbly flow, the application of a simple correlation-type bubble size model presents certain ...
Jinyeong Bak, Huiyung Kim, Jae Jun Jeong, Dongjin Euh, Byongjo Yun   +4 more
doaj   +1 more source

Bubble Characteristics in Multi-Phase Flow Systems: Bubble Sizes and Size Distributions.

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1997
The bubble characteristics for multi-phase flow systems were studied in a two-dimensional column by direct visual observation together with the image processing of photographs. The effects of operating conditions such as particle sizes, superficial gas and liquid velocities on bubble flow behavior were examined.
Wilai Luewisutthichat, Atsushi Tsutsumi, Kunio Yoshida   +2 more
openaire   +2 more sources

Bubble size distribution and energy dissipation in foam mixers [PDF]

, 1987
The bubble size distribution of a foam produced in a rotor-stator mixer has been determined as a function of several mixing parameters such as the rotor speed, residence time, gas/liquid ratio and the viscosity of the liquid used.
Baipai, Batchelor, Bikerman, Cheng, Gall-Or, Hsia, Konno, Kroezen, Metzer, Pawelczvk, Ranadine, Rumscheid, Taylor, Taylor   +13 more
core   +2 more sources

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

Journal 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, Naoki SHIMADA, Akira SOU, Akio TOMIYAMA   +3 more
doaj   +1 more source