Weakly viscoelastic film on a slippery slope

S Chattopadhyay, AS Desai, AK Gaonkar, AK Barua… - Physics of …, 2021 - pubs.aip.org
We study the stability of weakly viscoelastic film (Walter's B ″) flowing down under gravity
along a slippery inclined plane. The focus is to investigate the interaction of the bottom slip …

Dynamics of falling liquid films

C Ruyer-Quil, N Kofman, D Chasseur… - The European Physical …, 2014 - Springer
Falling liquid films are examples of open flows which undergo a sequence of supercritical
instabilities giving way to a spatio-temporal weak disorder organized around interfacial …

Dynamics and stability of a power-law film flowing down a slippery slope

S Chakraborty, TWH Sheu, S Ghosh - Physics of Fluids, 2019 - pubs.aip.org
A power-law fluid flowing down a slippery inclined plane under the action of gravity is
deliberated in this research work. A Newtonian layer at a small strain rate is introduced to …

Rheology dictated spreading regimes of a non-isothermal sessile drop

VT Mantripragada, A Poddar - Journal of Fluid Mechanics, 2022 - cambridge.org
In the present work, within the framework of thin film theory, we delineate the interaction
between the interfacial dynamics of thermal Marangoni flow and non-Newtonian rheology by …

Long-wave instability of a regularized Bingham flow down an incline

B Calusi, A Farina, L Fusi, F Rosso - Physics of Fluids, 2022 - pubs.aip.org
We investigate the linear stability of a flow down an incline when the fluid is modeled as a
regularized Bingham-like fluid, ie, a material whose constitutive equation is smoothed out …

Thin power-law film flow down an inclined plane: consistent shallow-water models and stability under large-scale perturbations

P Noble, JP Vila - Journal of Fluid Mechanics, 2013 - cambridge.org
In this paper we derive consistent shallow-water equations for the flow of thin films of power-
law fluids down an incline. These models account for the streamwise diffusion of momentum …

Viscoelastic film flows over an inclined substrate with sinusoidal topography. II. Linear stability analysis

D Pettas, G Karapetsas, Y Dimakopoulos… - Physical Review …, 2019 - APS
The linear hydrodynamic stability of a film of viscoelastic fluid flowing down an inclined wavy
surface is studied. We investigate the stability of the flow with respect to infinitesimal two-and …

[HTML][HTML] Instability of gravity-driven flow of a heated power-law fluid with temperature dependent consistency

JP Pascal, SJD D'Alessio, M Hasan - AIP Advances, 2018 - pubs.aip.org
In this paper we report on our investigation of the instability of a liquid layer flowing along a
heated inclined plane. We develop and implement a theoretical model with a power-law …

Stability of a non-Newtonian falling film due to three-dimensional disturbances

E Mogilevskiy - Physics of Fluids, 2020 - pubs.aip.org
In this paper, we apply the normal modes method to study the linear stability of a liquid film
flowing down an inclined plane, taking into account the complex rheology of the media. We …

Stability of a flow down an incline with respect to two-dimensional and three-dimensional disturbances for Newtonian and non-Newtonian fluids

MH Allouche, S Millet, V Botton, D Henry, H Ben Hadid… - Physical Review E, 2015 - APS
Squire's theorem, which states that the two-dimensional instabilities are more dangerous
than the three-dimensional instabilities, is revisited here for a flow down an incline, making …