Unsteady coating flow on a rotating cylinder in the presence of an irrotational airflow with circulation
نویسندگان
چکیده
Unsteady two-dimensional coating flow of a thin film viscous fluid on the outside uniformly rotating horizontal circular cylinder in presence steady irrotational airflow with circulation is considered. The analysis this problem by Newell and Viljoen [Phys. Fluids 31(3), 034106 (2019)], who sought to generalize work Hinch Kelmanson [Proc. R. Soc. London, Ser. A 459(2033), 1193–1213 (2003)] include effect airflow, revisited. In contrast claim that conditionally unstable (in sense solution for thickness grows without bound certain values physical parameters), it shown that, fact, remains unconditionally stable airflow.
منابع مشابه
an investigation of the types of text reduction in subtitling: a case study of the persian film gilaneh with english subtitles
چکیده ندارد.
15 صفحه اولthe effects of changing roughness on the flow structure in the bends
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
Qualitative Analysis of Coating Flows on a Rotating Horizontal Cylinder
We consider a nonlinear 4th-order degenerate parabolic partial differential equation that arises in modelling the dynamics of an incompressible thin liquid film on the outer surface of a rotating horizontal cylinder in the presence of gravity. The parameters involved determine a rich variety of qualitatively different flows. We obtain sufficient conditions for finite speed of support propagatio...
متن کاملUnsteady swirling flow in an enclosed cylinder with reflectional symmetry
A numerical investigation of the multiple stable solutions found in confined swirling flows is presented. The flows consist of fluid in a completely filled cylinder driven by the constant corotation of the two end walls. When reflectional symmetry at the cylinder half-plane is imposed, the flow corresponds to that in a cylinder of half the height driven by the bottom end wall, with the top surf...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics of Fluids
سال: 2022
ISSN: ['1527-2435', '1089-7666', '1070-6631']
DOI: https://doi.org/10.1063/5.0084472