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
N1 - Funding Information:
This work was supported in part by a Grant-in-Aid for Young Scientists (B) from Japan Society for the Promotion of Science (JSPS), the Regional Innovation Strategy Support Program from Ministry of Education, Culture, Sports, Science and Technology, Japan.
Publisher Copyright:
© 2015 Elsevier B.V.
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
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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 -