TY - GEN
T1 - Numerical study of Taylor cone dynamics in electrospinning of nanofibers
AU - Guo, Hui Fen
AU - Xu, Bingang
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Nanofibers produced by electrospinning are attractive for a large variety of applications in material science. Formation of Taylor cone is an integral part of electrospinning process. To understand deeply its formation, a two-phase electro-hydrodynamic simulation under the volume-of-fluid (VOF) model is proposed. The electric force in such systems acts only at the interface and is zero elsewhere in the two fluids. Continuum surface force (CSF) model is adopted to compute the electric field force at the interface. For the study case, transient analyses showed the moving flow fronts and their interactions with the applied electric field. Two symmetric vortices, which occur in Taylor cone, will increase the solution velocity. A beaded nanofiber can be formed owing to the beads occur in cone jet. The numerical results were consistent with previous studies. According to the numerical results, the formation mechanism and nanofiber dynamics of the Taylor cone in a multiphase flow were well disclosed for deep explanation of the process.
AB - Nanofibers produced by electrospinning are attractive for a large variety of applications in material science. Formation of Taylor cone is an integral part of electrospinning process. To understand deeply its formation, a two-phase electro-hydrodynamic simulation under the volume-of-fluid (VOF) model is proposed. The electric force in such systems acts only at the interface and is zero elsewhere in the two fluids. Continuum surface force (CSF) model is adopted to compute the electric field force at the interface. For the study case, transient analyses showed the moving flow fronts and their interactions with the applied electric field. Two symmetric vortices, which occur in Taylor cone, will increase the solution velocity. A beaded nanofiber can be formed owing to the beads occur in cone jet. The numerical results were consistent with previous studies. According to the numerical results, the formation mechanism and nanofiber dynamics of the Taylor cone in a multiphase flow were well disclosed for deep explanation of the process.
KW - Continuum surface force (CSF)
KW - Electrospinning nonafiber
KW - Taylor cone
KW - Volume-of-fluid (VOF)
UR - http://www.scopus.com/inward/record.url?scp=85015074039&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.730.510
DO - 10.4028/www.scientific.net/KEM.730.510
M3 - Conference article published in proceeding or book
SN - 9783038357834
T3 - Key Engineering Materials
SP - 510
EP - 515
BT - Innovative Materials
PB - Trans Tech Publications Ltd
T2 - International Conference on Material Engineering and Application, ICMEA 2016
Y2 - 19 August 2016 through 21 August 2016
ER -