Tīmeklis2024. gada 1. sept. · The Landau-Levich regime Let us consider that a plate or a fiber is pulled out of the liquid of viscosity η at a constant velocity V and present the seminal experimental and theoretical results. Tīmeklis2024. gada 30. aug. · The Deakin Law Review has ceased publication as an active law journal and cannot accept new submissions. • Past issues of DLR will continue to be …
Oleoplaning droplets on lubricated surfaces Nature Physics
TīmeklisWe further demonstrate that for a moving droplet, the film thickness follows the Landau–Levich–Derjaguin law. The droplet is therefore oleoplaning—akin to tyres hydroplaning on a wet road—with minimal dissipative force and no contact line pinning. Landau and Levich split the entire flow regime into two regimes, a lower regime and an upper regime. In the lower regime closer to the liquid surface, the flow is assumed to be static, leading to the problem of the Young–Laplace equation (a static meniscus). In the upper region far away from the liquid surface, the thickness of the liquid layer attaching to the plate is very small and also the since the velocity of the plate is small, this regime comes under the approximation of lubrication … myservicensw business
meniscus motion in a prewetted capillary在预湿毛细管半月板运动
Tīmeklis2024. gada 27. febr. · the thickness of the liquid film using the Landau-Levich-Derjaguin law; eℓ2 = κ−1(ηV/γ)2/3, where κ−1 is the capillary length [17, 18]. Since κ−1 = 1.9 mm for our solution, we obtain eℓ2 = 19 µm. This value is of the same order as our experimental estimate, although it is only a rough approximation. TīmeklisFor large droplets (V = 25 µl, R = 2.05 mm), the LLD classical law is well-obeyed over a wide range of capillary numbers Ca lv = 10 −5 − 10 −3 with perfluorinated and … Tīmeklis2016. gada 25. nov. · We demonstrate that the generalized Landau–Levich equation has a branch of stable steady state solutions and a branch of unstable solutions. The branches meet at a saddle-node bifurcation point corresponding to the threshold value of the SAW intensity. myservicenum1