Results 331 to 340 of about 244,761 (369)

Spontaneous transfer of droplets across microfluidic laminar interfaces

Lab on a Chip, 2016
Passive transfer of droplets across the laminar interfaces of two immiscible fluids is successfully achieved by precise control of the interfacial energies in a three phase microfluidic system.
Liang-Yin Chu, Liang-Yin Chu, Wei Wang, Nan-Nan Deng, Rui Xie, Xiao-Jie Ju   +5 more
openaire   +3 more sources

Pulsation and Mass Transfer of Pendent Liquid Droplets [PDF]

Nature, 1955
Lewis and Pratt1 observed that pendent drops containing solute which diffuses into the surrounding continuous phase sometimes showed ripples and pulsations at the interface; this was associated with increased rates of mass transfer. We have observed similar behaviour with pendent drops of nitrobenzene, chlorobenzene, carbon tetrachloride and chloroform
F. H. Garner, M. F. Mohtadi, C. W. Nutt
openaire   +1 more source

TRANSIENT HEAT TRANSFER TO A DROPLET SUSPENDED IN AN ELECTRIC FIELD

Numerical Heat Transfer, 1988
An implicit alternating direction (ADI) scheme is proposed here to solve the energy equation for the transient heat transfer to a fluid droplet suspended in an electric field. Use of Peaceman-Rachford scheme adopted by earlier authors produces undesirable oscillations in the Nusselt numbers which can be eliminated by the method proposed here.
Satteluri R. K. Iyengar, Ram P. Manohar
openaire   +2 more sources

Flow and Heat Transfer in Droplets-Film Interactions

ASME 2019 Heat Transfer Summer Conference, 2019
Abstract Multi-droplet impact on a thin liquid film covering a heated wall is numerically studied using a three-dimensional model with an implement of a random disturbance subjected to Gaussian distribution. The model can effectively simulate the splashing process after droplets impingement.
Haibing Yu, Shengqiang Shen, Gangtao Liang, Yang Chen   +3 more
openaire   +2 more sources

Transfer of heterogeneous droplets in the field of a temperature gradient

Journal of Engineering Physics and Thermophysics, 1993
The thermophoresis of a double-layer moderately large volatile droplet with a solid core, placed in a binary viscous gas mixture, is considered The thermodiffusion within the volume of a two-component gas mixture is allowed for, and all corrections for the Knudsen number are taken into, account completely.
Yu. I. Yalamov, A. V. Chermoshentsev
openaire   +2 more sources

The Effects of Impurities and Solutes upon the Charge Transfer of Droplets

Environmental Letters, 1971
Abstract The rates of charge transfer of evaporating droplets of radius less than 5 microns have been measured by means of a Millikan Oil Drop apparatus. As the evaporation proceeds, droplets of pure liquids seem to retain their charge at a near constant level, but droplets of liquid dispersions containing some immiscible substances steadily loose ...
Joseph T. Zung, Claybourne C. Snead, Robert Belshe   +2 more
openaire   +3 more sources

Sensitivity study for the mass transfer at a single droplet

International Journal of Heat and Mass Transfer, 2005
Abstract The mass transfer between a single droplet and a surrounding fluid can be described mathematically solving the momentum and mass balances in both phases (conjugate problem). This study of dimensionless parameters shows how the process is influenced by changes in material properties and operating conditions.
Matthias Kraume, Anja R. Paschedag, Wahyu H. Piarah   +2 more
openaire   +2 more sources

Visualization of Mass Transfer during Droplet Formation

Chemical Engineering & Technology, 2019
AbstractThe impact of mass transfer in liquid‐liquid extraction during droplet formation in a quiescent continuous phase was investigated. The impact of droplet size, concentration, and formation rate on a hanging droplet was analyzed via laser induced fluorescence (LIF) using rhodamine 6G as tracer in the system of toluene and acetone in water.
Jens Heine, Hans-Jörg Bart
openaire   +2 more sources

Mass transfer into droplets undergoing reactive extraction

Chemical Engineering and Processing: Process Intensification, 2003
Abstract The mass transfer into droplets in metal extraction is investigated in the system ZnSO 4 –H 2 SO 4 /di(2ethylhexyl)phosphoric acid in isododecane. Results of equilibrium measurements and stirred cell experiments are described in a mathematical model based on gradients of chemical potential.
Hans-Jörg Bart, M. Mörters
openaire   +2 more sources

Heat-transfer measurements of evaporating liquid droplets

International Journal of Heat and Mass Transfer, 1978
The heat transfer to simulated (porous sphere) water and methanol droplets were measured in an atmospheric vertical hot air tunnel. The experiments were limited to a Reynolds number range of 200–2000, a free stream air temperature range of 150–960°C and a velocity range of 2.1–11.4 m/s. The experimental data can best be correlated by Nuf(1 + B) = 2 + 0.
M.C. Yuen, L.W. Chen
openaire   +2 more sources