Results 21 to 30 of about 155,194 (319)

Dynamic Surface Tension of Aqueous Solutions of Ionic Surfactants: Role of Electrostatics [PDF]

, 2010
The adsorption kinetics of the cationic surfactant dodecyltrimethylammonium bromide at the air-water interface has been studied by the maximum bubble pressure method at concentrations below the critical micellar concentration.
Andelman, David, Diamant, Haim, Langevin, Dominique, Ritacco, Hernan   +3 more
core   +2 more sources

Failure Mechanisms of Hollow Fiber Supported Ionic Liquid Membranes

Membranes, 2016
Hollow fiber supported ionic liquid membranes (SILMs) were tested using the bubble point method to investigate potential failure modes, including the maximum transmembrane pressure before loss of the ionic liquid from the support.
Matthew Zeh, Shan Wickramanayake, David Hopkinson   +2 more
doaj   +1 more source

Tensiometry as a Simple Analytical Method for Quantification of Solubility and Release of Aroma Molecules in Aqueous Media

Molecules, 2021
Dynamic tensiometry is shown to be a high-potential analytical tool in assessing physico-chemical characteristics of fragrance molecules, such as solubility limit, volatility as well as much rarely assessed interfacial activity of these amphiphilic ...
Ruth Kudla, Jochen S. Gutmann, Larisa A. Tsarkova   +2 more
doaj   +1 more source

Numerical simulation of a collapsing bubble subject to gravity [PDF]

, 2016
© 2016 AIP Publishing LLC. The present paper focuses on the simulation of the expansion and aspherical collapse of a laser-generated bubble subjected to an acceleration field and comparison of the results with instances from high-speed videos.
Brennen C. E., Brennen C. E., Franc J.-P., M. Farhat, M. Gavaises, Malalasekera W., Moukalled F., O. Supponen, P. Koukouvinis, Prosperetti A., Thompson J. F., Tinguely M., Ubbink O., Wagner W.   +13 more
core   +1 more source

Jet formation from bubbles near a solid boundary in a compressible liquid. Numerical study of distance dependence

, 2020
A small, spherical bubble of high internal pressure is inserted into water at constant ambient pressure as a model of a laser-induced bubble. Its subsequent dynamics near a flat solid boundary is studied in dependence on the distance of the bubble to the
Koch, Max, Lauterborn, Werner, Lechner, Christiane, Mettin, Robert   +3 more
core   +2 more sources

Simulation of bubble expansion and collapse in the vicinity of a free surface [PDF]

, 2016
The present paper focuses on the numerical simulation of the interaction of laser-generated bubbles with a free surface, including comparison of the results with instances from high-speed videos of the experiment.
Brennen C. E., Chorin A., Franc J.-P., Landau L. D., M. Farhat, M. Gavaises, Malalasekera W., Morse P., Moukalled F., O. Supponen, P. Koukouvinis, Prosperetti A., Thompson J. F., Tinguely M., Ubbink O., Wagner W.   +15 more
core   +1 more source

Influence of the accommodation coefficient on nonlinear bubble oscillations [PDF]

, 2010
This paper numerically investigates the effect of mass transfer processes on spherical single bubble dynamics using the Hertz–Langmuir–Knudsen approximation for the mass flux across the interface.
Dopazo, Cesar, Fuster, Daniel, Hauke, Guillermo   +2 more
core   +1 more source

Numerical Study on Taylor Bubble Rising in Pipes

한국해양공학회지, 2021
Slug flow is the most common multi-phase flow encountered in oil and gas industry. In this study, the hydrodynamic features of flow in pipes investigated numerically using computational fluid dynamic (CFD) simulations for the effect of slug flow on the ...
Seungchul Shin, Gang Nam Lee, Kwang Hyo Jung, Hyun Jung Park, Il Ryong Park, Sung-bu Suh   +5 more
doaj   +1 more source

Numerical simulations of non-spherical bubble collapse [PDF]

, 2009
A high-order accurate shock- and interface-capturing scheme is used to simulate the collapse of a gas bubble in water. In order to better understand the damage caused by collapsing bubbles, the dynamics of the shock-induced and Rayleigh collapse of a ...
Colonius, Tim, Johnsen, Eric
core   +1 more source

Effects of arc bubble behaviors and characteristics on droplet transfer in underwater wet welding using in-situ imaging method

Materials & Design, 2019
The effects of arc bubble behaviors and characteristics on droplet transfer are observed with an in-situ X-ray imaging method. The changes in the force acting on the droplet are analyzed at three distinct stages of arc bubble in one life cycle.
Hao Chen, Ning Guo, Lu Huang, Xin Zhang, Jicai Feng, Guodong Wang   +5 more
doaj   +1 more source