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Effect of droplet superficial velocity on mixing efficiency in liquid-liquid droplet flow

Li, X.J. ; Qiu, C. ; Wu, Zan LU ; Qian, Jin-Yuan LU orcid and Sundén, Bengt LU (2019) XII International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2019
Abstract
Enhancement of mixing efficiency in droplets is of great importance to extend the industrial applications of the liquid-liquid twophase flow in micro-scale. In this paper, mixing efficiency in droplets is investigated via the VOF (volume of fluid) method coupled
with UDS (user defined scalar) model. The cross-shaped T junction with a square cross-section is designed and used for droplet
formation. Different droplet length and droplet formation frequency are obtained by changing the droplet superficial velocity.
Relative velocity fields in different droplet superficial velocity are plotted. Effect of droplet superficial velocity on mixing efficiency
in droplets are quantitatively analyzed based on the scalar distribution... (More)
Enhancement of mixing efficiency in droplets is of great importance to extend the industrial applications of the liquid-liquid twophase flow in micro-scale. In this paper, mixing efficiency in droplets is investigated via the VOF (volume of fluid) method coupled
with UDS (user defined scalar) model. The cross-shaped T junction with a square cross-section is designed and used for droplet
formation. Different droplet length and droplet formation frequency are obtained by changing the droplet superficial velocity.
Relative velocity fields in different droplet superficial velocity are plotted. Effect of droplet superficial velocity on mixing efficiency
in droplets are quantitatively analyzed based on the scalar distribution uniformity in droplets. Results show that the mixing
efficiency varies with the different droplet superficial velocity. A higher droplet superficial velocity makes a higher mixing efficiency
due to the faster inner circulation and shorter droplet length. (Less)
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organization
publishing date
type
Contribution to conference
publication status
published
subject
conference name
XII International Conference on Computational Heat, Mass and Momentum Transfer, ICCHMT 2019
conference location
Rome, Italy
conference dates
2019-09-03 - 2019-09-06
language
English
LU publication?
yes
id
4d2a95af-0ea3-40e5-a701-2110caddd57b
date added to LUP
2020-01-19 14:44:57
date last changed
2020-07-27 10:25:24
@misc{4d2a95af-0ea3-40e5-a701-2110caddd57b,
  abstract     = {{Enhancement of mixing efficiency in droplets is of great importance to extend the industrial applications of the liquid-liquid twophase flow in micro-scale. In this paper, mixing efficiency in droplets is investigated via the VOF (volume of fluid) method coupled<br/>with UDS (user defined scalar) model. The cross-shaped T junction with a square cross-section is designed and used for droplet<br/>formation. Different droplet length and droplet formation frequency are obtained by changing the droplet superficial velocity.<br/>Relative velocity fields in different droplet superficial velocity are plotted. Effect of droplet superficial velocity on mixing efficiency<br/>in droplets are quantitatively analyzed based on the scalar distribution uniformity in droplets. Results show that the mixing<br/>efficiency varies with the different droplet superficial velocity. A higher droplet superficial velocity makes a higher mixing efficiency<br/>due to the faster inner circulation and shorter droplet length.}},
  author       = {{Li, X.J. and Qiu, C. and Wu, Zan and Qian, Jin-Yuan and Sundén, Bengt}},
  language     = {{eng}},
  title        = {{Effect of droplet superficial velocity on mixing efficiency in liquid-liquid droplet flow}},
  year         = {{2019}},
}