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TM Technisches Messen, 2022
Abstract Although relevant in many technical applications, the removal of sessile droplets on surfaces by an (air-) flow is still hard to predict. The flow around the droplet has not been investigated in detail so far but knowledge on the flow structure is essential for the assessment of appropriate drag force correlation. Small droplets
Jürgen Czarske +2 more
exaly +3 more sources
Abstract Although relevant in many technical applications, the removal of sessile droplets on surfaces by an (air-) flow is still hard to predict. The flow around the droplet has not been investigated in detail so far but knowledge on the flow structure is essential for the assessment of appropriate drag force correlation. Small droplets
Jürgen Czarske +2 more
exaly +3 more sources
Fuel, 2019
Abstract The deformation and fragmentation processes of single droplet in turbulent velocity flows are compared with the continuous uniform velocity inlet profile flows. Direct numerical simulation (DNS) coupled with volume of fluids (VOF) method is adopted to solve the flow equations and track the liquid–gas interfaces.
Kui Jiao, Qing Du, Daokuan Jiao
exaly +3 more sources
Abstract The deformation and fragmentation processes of single droplet in turbulent velocity flows are compared with the continuous uniform velocity inlet profile flows. Direct numerical simulation (DNS) coupled with volume of fluids (VOF) method is adopted to solve the flow equations and track the liquid–gas interfaces.
Kui Jiao, Qing Du, Daokuan Jiao
exaly +3 more sources
International Journal of Multiphase Flow, 2016
Abstract The present work is dedicated to experimental measurement of internal velocity profile within a forming droplet in micro-channels. Velocity distributions are obtained by a micro-particle image velocimetry (Micro-PIV). Three liquid working systems were used to study the effects of surface properties on the droplets’ internal flow field ...
Wang Xi, Guangsheng Luo
exaly +3 more sources
Abstract The present work is dedicated to experimental measurement of internal velocity profile within a forming droplet in micro-channels. Velocity distributions are obtained by a micro-particle image velocimetry (Micro-PIV). Three liquid working systems were used to study the effects of surface properties on the droplets’ internal flow field ...
Wang Xi, Guangsheng Luo
exaly +3 more sources
Science and Technology of Welding and Joining, 2017
The influence of current profile and pulse parameters on droplet formation and transfer was investigated. One profile has an exponential ramp up and down in the current pulse shape, while the second is nearly square shaped. High-speed photography, synchronised with a high-speed data acquisition system, was used to monitor the droplet formation and ...
Emanuel Bruno Ferreira dos Santos +1 more
exaly +3 more sources
The influence of current profile and pulse parameters on droplet formation and transfer was investigated. One profile has an exponential ramp up and down in the current pulse shape, while the second is nearly square shaped. High-speed photography, synchronised with a high-speed data acquisition system, was used to monitor the droplet formation and ...
Emanuel Bruno Ferreira dos Santos +1 more
exaly +3 more sources
Journal of Intelligent Manufacturing, 2023
Submitted/Accepted ...
Xi Huang, Wei Long Ng, Wai Yee Yeong
openaire +4 more sources
Submitted/Accepted ...
Xi Huang, Wei Long Ng, Wai Yee Yeong
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Radial-velocity profile along the surface of evaporating liquid droplets
Soft Matter, 2012The deposit pattern of drying liquid droplets has a close relationship with the radial-velocity profile along the droplet surface. In this paper, the surface temperature of the droplet is first solved numerically and approximated by a simple analytical form, and an analytical expression for the radial-velocity of the surface flow is then obtained by ...
Xuefeng Xu, Jianbin Luo, Dan Guo
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Materials Science and Engineering: A, 1993
Abstract The gas flow field of a free-fall atomizer was measured in three dimensions using hot wire anemometry and corresponding measurements were taken using a Pitot tube to confirm axial flow velocities. The measurements show good agreement with predictions of fluid flow modelling.
S.A. Moir, H. Jones
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Abstract The gas flow field of a free-fall atomizer was measured in three dimensions using hot wire anemometry and corresponding measurements were taken using a Pitot tube to confirm axial flow velocities. The measurements show good agreement with predictions of fluid flow modelling.
S.A. Moir, H. Jones
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Droplet size and velocity distributions for spray modelling
Journal of Computational Physics, 2012D P Jones
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Primary breakup of liquid jet—Effect of jet velocity profile
The Physics of Fluids, 2023The present work examines the effect of the velocity profile on primary breakup of liquid jets emanating from fuel injectors. Direct numerical simulation is used to simulate liquid jet breakup.
Balaji Srinivasan, Anubhav Sinha
semanticscholar +1 more source