after designing and constructing a coalescence cell, drop/interface coalescence phenomenon was studied in the absence and presence of single surfactant.two surface active agents of sodium dodecyl sulfate and 1-decanol were used. distilled water was used as dispersed phase. toluene, n-heptane and aqueous 60% (v/v) of glycerol were selected as continuous phases, separately. it was found that the ...

We report a deformation phenomenon occurring at the interface between two immiscible liquids. The two liquids are in a cylindrical container and set into motion by a rotating lid positioned above the interface. The upper liquid is more viscous than the lower and the difference in densities between the liquids is fairly small. As the rotational speed of the lid (Omega) is increased in small incr...

The enhancement of boiling heat transfer, the most powerful energy-transferring technology, will lead to milestones in the development of high-efficiency, next-generation energy systems. Perceiving nano-inspired interface functionalities from their rough morphologies, we demonstrate interface-induced liquid refreshing is essential to improve heat transfer by intrinsically avoiding Leidenfrost p...

Oxide scales that form on superalloys eventually spall, especially upon thermal cycling. This phenomenon is motivated by the large residual compression in the oxide. Buckling and interface crack propagation are known aspects of this behavior, but the origin of the interface separation that precedes and activates buckling is not understood. One mechanism is described and analyzed in this article...

We investigate the thermal fluctuations of the colloidal gas-liquid interface subjected to a shear flow parallel to the interface. Strikingly, we find that the shear strongly suppresses capillary waves, making the interface smoother. This phenomenon can be described by introducing an effective interfacial tension that increases with the shear rate. The increase of sigma(eff) is a direct consequ...

The behavior of DNA molecules is observed in a nanofluidic device near the interface of two regions that produce different configuration entropies. An electric field is applied to drive the molecules partway across the interface. Upon removal of the field, the molecules recoil to the higher-entropy region with a profile characteristic of a force localized to the interface and independent of len...

This research opens up for consideration the topic of a generalized simulation Applications Programming Interface. Discussion evolves around representation of one phenomenon essential to such an Interface, which is the widely used Line-of-Sight methodology. The research describes an initial set of line of sight (LOS) attributes necessary for a generalized Applications Programming Interface. Det...

The importance of water-air interfaces (WAI) on microorganism activities has been recognized by many researchers. In this paper, we report a novel phenomenon: the entrapment of ciliates Tetrahymena at the WAI. We first characterized the behavior of cells at the interface and showed that the cells' swimming velocity was considerably reduced at the WAI. To verify the possible causes of the entrap...

Adhesion-induced instability has been observed at the interface of a flexible plate and a thin elastic film bonded to a rigid substrate. The surface of the confined film develops undulations almost instantaneously, and instability patterns appear in the form of fingers or bubbles at the interface. The characteristic wavelengths of these instabilities remain independent of all material and geome...

We consider longwave mode of the interface instability in the system comprising of two immiscible fluid layers. The fluids fill out plane horizontal cavity which is subjected to horizontal harmonic vibration. The analysis is performed within the framework of ”high frequency of the vibration” approximation and the averaging procedure. The nonlinear equation (having the form of Newton’s second la...