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Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics, 2022
In numerous technical flow applications knowing size, velocity, and position of dispersed structures simultaneously enables the comprehensive characterization of the underlying dynamics. A suitable interferometric measurement technique capable of measuring simultaneously the three droplet characteristics is introduced for the first time.
M. Niehoff +4 more
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In numerous technical flow applications knowing size, velocity, and position of dispersed structures simultaneously enables the comprehensive characterization of the underlying dynamics. A suitable interferometric measurement technique capable of measuring simultaneously the three droplet characteristics is introduced for the first time.
M. Niehoff +4 more
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Theoretical Foundations of Chemical Engineering, 2021
The process of turbulent migration of liquid aerosol particles in a chaotic packed bed of a gas separator is considered. Differential equations for the mass transfer of particles in plane-parallel and cylindrical channels, as well as in an apparatus with a chaotic packed bed, are written.
A. G. Laptev, E. A. Lapteva
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The process of turbulent migration of liquid aerosol particles in a chaotic packed bed of a gas separator is considered. Differential equations for the mass transfer of particles in plane-parallel and cylindrical channels, as well as in an apparatus with a chaotic packed bed, are written.
A. G. Laptev, E. A. Lapteva
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Physics of Fluids, 2023
In this study, the effects of sneeze velocity profiles, including peak velocity (PV), peak velocity time (PVT), and sneeze duration time (SDT), on the dispersion of respiratory droplets were studied experimentally and numerically. Spatial–temporal datasets of droplet velocity exhaled from several subjects' mouths with different physiological ...
Alireza Bahramian, Goodarz Ahmadi
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In this study, the effects of sneeze velocity profiles, including peak velocity (PV), peak velocity time (PVT), and sneeze duration time (SDT), on the dispersion of respiratory droplets were studied experimentally and numerically. Spatial–temporal datasets of droplet velocity exhaled from several subjects' mouths with different physiological ...
Alireza Bahramian, Goodarz Ahmadi
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Droplet impacting on pillared hydrophobic surfaces with different solid fractions.
Journal of Colloid and Interface Science, 2023HYPOTHESIS The solid fraction of the substrate is expected to influence the bouncing behavior of an impinging droplet, thereby affecting spreading and contact time. Hence, it should be possible to alter the velocity and pressure distribution of impacting
Lei Xia +5 more
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Initial wetting velocity of droplet impact and spreading: Water on glass and parafilm
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2011Shi-Yow Lin, Meng-Jiy Wang
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Droplet size and velocity profiles in liquid–liquid horizontal flows
Chemical Engineering Science, 2004Abstract The size and vertical distribution of drops were studied experimentally in dispersed liquid–liquid pipeline flows. Under most conditions the pattern was dual continuous where both phases retain their continuity and there is entrainment in the form of drops of one phase into the other.
J Lovick, P Angeli
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On the migration of a droplet driven by thermocapillary action in a wettability-confined track
The Physics of Fluids, 2023We report a study of the thermocapillary migration of droplets under a radial thermal gradient and in a wettability-confined track. A three-dimensional mathematical model is established based on the lubrication approximation.
Cheng Ma +3 more
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Spatial droplet velocity and size profiles in effervescent atomizer-produced sprays
Fuel, 1999Effervescent atomizer produced sprays were studied for application to rotary kiln incinerators. The sprays were characterized by their number averaged droplet velocity profiles, Sauter mean diameter (SMD) profiles, and size-velocity correlations. Spray mass flow rates ranged from 30 to 120 g/s.
Mahesh V. Panchagnula, Paul E. Sojka
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Effect of droplet deformability on shear thinning in a cylindrical channel.
Physical Review E, 2023Droplets suspended in fluids flowing through microchannels are often encountered in different contexts and scales, from oil extraction down to microfluidics.
Danilo P. F. Silva +3 more
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Pressure and Velocity Profiles Generated by Laser-Heated Spherical Droplets
1988When a spherical droplet is irradiated by a light beam the heat released by absorption of light causes expansion of the sphere which gives rise to a photoacoustic effect. The acoustic waveforms generated by Gaussian heating functions can be calculated from convolution integrals.
G. J. Diebold, X. C. Hu
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