Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
GNBC-based front-tracking method for the three-dimensional simulation of droplet motion on a solid surface. / Shang, Xinglong; Luo, Zhengyuan; Gatapova, Elizaveta Ya и др.
в: Computers and Fluids, Том 172, 30.08.2018, стр. 181-195.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - GNBC-based front-tracking method for the three-dimensional simulation of droplet motion on a solid surface
AU - Shang, Xinglong
AU - Luo, Zhengyuan
AU - Gatapova, Elizaveta Ya
AU - Kabov, Oleg A.
AU - Bai, Bofeng
N1 - Publisher Copyright: © 2018 Elsevier Ltd
PY - 2018/8/30
Y1 - 2018/8/30
N2 - Previous front-tracking (FT) method-based models to simulate droplet motion on a solid surface with a moving contact line (MCL) are limited to two-dimensional models in which the Navier boundary condition (NBC) is employed for the MCL. In this paper, we develop a three-dimensional FT method that integrates the generalized Navier boundary condition (GNBC) to model the MCL. This GNBC-based FT method addresses several key issues, such as the integration of GNBC for the dynamic description of the MCL and its coupling with the surrounding flow, the accurate updating of the density and viscosity of the two-phase fluid near the contact line, and the restructuring of the Lagrangian mesh for tracking the drop surface, especially near the contact line. The stability and accuracy of the present numerical method are validated by several tests: (1) numerical performance tests, (2) simulation of the transient and steady-state shapes of droplets under flow with a fixed contact line, and (3) simulation of a droplet spreading under gravity and moving under a shear flow with MCLs. Excellent agreement is achieved between the results obtained by our model and the data obtained by other theoretical and numerical approaches.
AB - Previous front-tracking (FT) method-based models to simulate droplet motion on a solid surface with a moving contact line (MCL) are limited to two-dimensional models in which the Navier boundary condition (NBC) is employed for the MCL. In this paper, we develop a three-dimensional FT method that integrates the generalized Navier boundary condition (GNBC) to model the MCL. This GNBC-based FT method addresses several key issues, such as the integration of GNBC for the dynamic description of the MCL and its coupling with the surrounding flow, the accurate updating of the density and viscosity of the two-phase fluid near the contact line, and the restructuring of the Lagrangian mesh for tracking the drop surface, especially near the contact line. The stability and accuracy of the present numerical method are validated by several tests: (1) numerical performance tests, (2) simulation of the transient and steady-state shapes of droplets under flow with a fixed contact line, and (3) simulation of a droplet spreading under gravity and moving under a shear flow with MCLs. Excellent agreement is achieved between the results obtained by our model and the data obtained by other theoretical and numerical approaches.
KW - Contact angle hysteresis
KW - Front-tracking method
KW - Generalized Navier boundary condition
KW - Moving contact line
KW - ANGLE HYSTERESIS
KW - WALL
KW - SHEAR-FLOW
KW - MOVING CONTACT LINES
KW - DETACHMENT
KW - DEFORMATION
KW - FLUID-FLOWS
KW - DYNAMICS
KW - NUMERICAL SIMULATIONS
KW - SPREADING DROPLETS
UR - http://www.scopus.com/inward/record.url?scp=85049792710&partnerID=8YFLogxK
U2 - 10.1016/j.compfluid.2018.06.021
DO - 10.1016/j.compfluid.2018.06.021
M3 - Article
AN - SCOPUS:85049792710
VL - 172
SP - 181
EP - 195
JO - Computers and Fluids
JF - Computers and Fluids
SN - 0045-7930
ER -
ID: 23777423