TY - JOUR
T1 - Gravity-driven thin film flow
T2 - The influence of topography and surface tension gradient on rivulet formation
AU - Slade, David
AU - Veremieiev, Sergii
AU - Lee, Yeaw Chu
AU - Gaskell, Philip
PY - 2013/6
Y1 - 2013/6
N2 - The evolution of an advancing fluid front formed by a gravity-driven thin film flowing down a planar substrate is considered, with particular reference to the presence of Marangoni stresses and/or sur- face topography. The system is modelled using lubrication theory and solved via an efficient, adaptive multigrid method that incorporates automatic, error-controlled grid refinement/derefinement and time stepping. The detailed three dimensional numerical results obtained reveal that, for the problems inves- tigated, while both of the above features affect the merger of rivulets by either delaying or promoting the same, topography influences the direction of growth.
AB - The evolution of an advancing fluid front formed by a gravity-driven thin film flowing down a planar substrate is considered, with particular reference to the presence of Marangoni stresses and/or sur- face topography. The system is modelled using lubrication theory and solved via an efficient, adaptive multigrid method that incorporates automatic, error-controlled grid refinement/derefinement and time stepping. The detailed three dimensional numerical results obtained reveal that, for the problems inves- tigated, while both of the above features affect the merger of rivulets by either delaying or promoting the same, topography influences the direction of growth.
U2 - 10.1016/j.cep.2012.07.003
DO - 10.1016/j.cep.2012.07.003
M3 - Article
SN - 0255-2701
VL - 68
SP - 7
EP - 12
JO - Chemical Engineering and Processing: Process Intensification
JF - Chemical Engineering and Processing: Process Intensification
ER -