Simulations of pendant drop formation of a viscoelastic liquid
Contribuinte(s) |
Chongyoup Kim D. V. Boger |
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Data(s) |
01/01/2006
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Resumo |
A modified Volume-of-Fluid (VOF) numerical method is used to predict the dynamics of a liquid drop of a low viscosity dilute polymer solution, forming in air from a circular nozzle. Viscoelastic effects are represented using an Oldroyd-B model. Predicted drop shapes are compared with experimental observations. The main features, including the timing of the shape evolution and the bead-on-a-string effect, are well reproduced by the simulations. The results confirm published conclusions of the third author, that the deformation is effectively Newtonian until near the time of Newtonian pinch-off and that the elastic stress becomes large in the pinch region due to the higher extensional flow there. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Korean Soc Rheology |
Palavras-Chave | #pendant drop #viscoelastic #volume of fluid method #interface #Volume Of Fluid Method #Interface #Uniaxial Extensional Flow #Wormlike Micellar Fluids #Free-surface Flows #Dynamics #Deformation #Breakup #C1 #290600 Chemical Engineering #670705 Plastic products (incl. construction materials) |
Tipo |
Journal Article |