Here, we focus on smaller bubbles, in which case the symmetric static solution is unstable and the static bubble is displaced towards one of the deeper regions of the channel on either side of the rail.
Using a combination of experiments and numerical simulations of a depth-averaged model, we show that a bubble propagating axially due to a small imposed flow rate can be stabilised in a steady symmetric mode centred on the rail through a subtle interaction between stabilising viscous forces and destabilising surface tension forces.
Fluid dynamics is the study of the motion of liquids, gases and plasmas.
Flow is dependent on the intrinsic properties of the matter itself, such as compressibility, viscosity and density.
The new International Journal of Fluid Mechanics Research will continue to deliver up-to-date research to a wide range of fluids professionals, including mechanical, chemical, nuclear, aeronautical and civil engineers, as well as physicists and mathematicians interested in fluid dynamics and transport phenomena.
IJFMR will bring you top quality research papers from an international body of contributors and a team of distinguished editors from the worldís leading institutions engaged in all aspects of fluid mechanics.Heretofore, Fluid Mechanics Research concentrated on publishing translations of important theoretical and experimental papers from the former Soviet Union.Now, the broader Journal invites contributions in English from the entire international research community, but will continue to publish translations of seminal articles from the same institutions that have never appeared in Western literature as well as Japanese work that could otherwise escape notice.IJFMR will bring you top quality research papers from an international body of contributors and a team of distinguished editors from the world's leading institutions engaged in all aspects of fluid mechanics. Nikishov EXPERIMENTAL AND NUMERICAL PREDICTION OF SLURRY FLOW IN PIPE: A REVIEW Rahul Mishra, K. Ghanta, Amar Nath Mullick, Shobha Lata Sinha HEAT AND MASS TRANSFER ON MHD FREE CONVECTIVE FLOW OVER AN INFINITE NONCONDUCTING VERTICAL FLAT POROUS PLATE M. IJFMR succeeded Fluid Mechanics Research beginning with Volume 22. PDF Phase stability analysis using interval Newton method with NRTL model, Hatice Gecegormez and Yasar Demirel PDF Stability of Poiseuille-Couette Flow Between Concentric Cylinders, J H. Journal of Fluid Mechanics is the leading international journal in the field and is essential reading for all those concerned with developments in fluid mechanics.Spectrum of Turbulent Fluctuations of the Sea-Water Refraction Index V. You are using a browser version with limited support for CSS.However, for sufficiently large capillary numbers Ca, the ratio of viscous to surface tension forces, viscous forces in turn become destabilising thus returning the bubble to an off-centred propagation regime.With decreasing bubble size, the range of Ca for which steady centred propagation is stable decreases, and eventually vanishes through the coalescence of two supercritical pitchfork bifurcations.