Abstract
The paper is concerned with the capillary instability of a liquid thread surrounded by another immiscible liquid. We study the occurrence of the dominant mode of perturbation for different combinations of Newtonian and viscoelastic fluids. When a viscoelastic fluid is present, in the limit of small deformations, the dispersion relation is obtained via a Maxwell type approximation of the viscosity curve which can be directly incorporated into an existing model of thread instability. Measurements of the fastest-growing mode are then performed and compared with theoretical predictions. A satisfactory agreement between the theory and experiment is found in terms of the wavenumber of the fastest-growing mode.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
