Abstract
We numerically investigated the demulsification phenomena of oil-in-water (O/W) emulsions using a membrane coalescence process. We simulated the permeation of O/W emulsions through a membrane with a single straight pore using our numerical framework based on the coupled level set and volume-of-fluid (CLSVOF) method. With a low droplet volume fraction, small droplets, and a large pore size, the oil droplets frequently passed through the membrane without attaching to its surface. After the steady coalescence of the droplets on the membrane surface at the permeation side, large oil droplets could be obtained. With a higher droplet volume fraction, larger oil droplets, and smaller membrane pores, the oil droplets easily blocked the membrane pores and were thus forced away by the permeating flow, which yielded relatively small oil droplets. Our numerical work revealed the fundamental dynamics of the coalescence of oil droplets in an O/W emulsion using a simple membrane model.
| Original language | English |
|---|---|
| Pages (from-to) | 70-77 |
| Number of pages | 8 |
| Journal | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
| Volume | 491 |
| DOIs | |
| Publication status | Published - Feb 20 2016 |
| Externally published | Yes |
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Keywords
- CLSVOF
- Coalescence
- Computational fluid dynamics
- Membrane
- Oil-in-water emulsion
ASJC Scopus subject areas
- Colloid and Surface Chemistry
Cite this
Numerical simulation of coalescence phenomena of oil-in-water emulsions permeating through straight membrane pore. / Mino, Yasushi; Kagawa, Yusuke; Ishigami, Toru; Matsuyama, Hideto.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 491, 20.02.2016, p. 70-77.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Numerical simulation of coalescence phenomena of oil-in-water emulsions permeating through straight membrane pore
AU - Mino, Yasushi
AU - Kagawa, Yusuke
AU - Ishigami, Toru
AU - Matsuyama, Hideto
PY - 2016/2/20
Y1 - 2016/2/20
N2 - We numerically investigated the demulsification phenomena of oil-in-water (O/W) emulsions using a membrane coalescence process. We simulated the permeation of O/W emulsions through a membrane with a single straight pore using our numerical framework based on the coupled level set and volume-of-fluid (CLSVOF) method. With a low droplet volume fraction, small droplets, and a large pore size, the oil droplets frequently passed through the membrane without attaching to its surface. After the steady coalescence of the droplets on the membrane surface at the permeation side, large oil droplets could be obtained. With a higher droplet volume fraction, larger oil droplets, and smaller membrane pores, the oil droplets easily blocked the membrane pores and were thus forced away by the permeating flow, which yielded relatively small oil droplets. Our numerical work revealed the fundamental dynamics of the coalescence of oil droplets in an O/W emulsion using a simple membrane model.
AB - We numerically investigated the demulsification phenomena of oil-in-water (O/W) emulsions using a membrane coalescence process. We simulated the permeation of O/W emulsions through a membrane with a single straight pore using our numerical framework based on the coupled level set and volume-of-fluid (CLSVOF) method. With a low droplet volume fraction, small droplets, and a large pore size, the oil droplets frequently passed through the membrane without attaching to its surface. After the steady coalescence of the droplets on the membrane surface at the permeation side, large oil droplets could be obtained. With a higher droplet volume fraction, larger oil droplets, and smaller membrane pores, the oil droplets easily blocked the membrane pores and were thus forced away by the permeating flow, which yielded relatively small oil droplets. Our numerical work revealed the fundamental dynamics of the coalescence of oil droplets in an O/W emulsion using a simple membrane model.
KW - CLSVOF
KW - Coalescence
KW - Computational fluid dynamics
KW - Membrane
KW - Oil-in-water emulsion
UR - http://www.scopus.com/inward/record.url?scp=84955147017&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84955147017&partnerID=8YFLogxK
U2 - 10.1016/j.colsurfa.2015.11.059
DO - 10.1016/j.colsurfa.2015.11.059
M3 - Article
AN - SCOPUS:84955147017
VL - 491
SP - 70
EP - 77
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
SN - 0927-7757
ER -