The phenomena of binary collisions and coalescence droplets was investigated from experimental studies but still are missing real applications such as fuel injector. main purpose the current study is to investigate a practical port To accomplish this, direct microscopic images taken high speed video camera coupled with long-distance microscope Barlow lens using backlighting method. Experimental...

We study spreading of a droplet, with insoluble surfactant covering its capillary surface, on textured substrate. In this process, the surfactant-dependent surface tension dominates behaviors whole dynamics, particularly moving contact lines. This allows us to derive full dynamics droplets laid by surfactant: (i) lines, (ii) evolution (iii) boundary condition at lines and (iv) incompressible vi...

A key question in the interaction of droplets with lubricated and liquid-infused surfaces is what determines apparent contact angle droplets. Previous work has determined this using measured values geometry `skirt' -- meniscus-like deformation that forms around base deposited droplet. Here, we consider theoretically equilibrium a droplet on smooth, impermeable lubricant-coated surface, argue sm...

Given the set of square matrices M ⊂ Mn+m(C) that keep the subspace W = Cnx{0} ⊂ C invariant, we obtain the implicit form of a miniversal deformation of a matrix a ∈ M, and we compute it explicitely when this matrix is marked (this is, if there is a permutation matrix p ∈ Mn+m(C) such that p−1ap is a Jordan matrix). We derive some applications to tackle the classical Carlson problem.

Freezing of water droplets placed on the bare and superhydrophobic surfaces polymer wedges are studied both experimentally computationally. Two-dimensional numerical calculations transient temperature field in a chilled wedge show that direction heat flux from droplet through thermal contact region with differs significantly normal to surface. This is physical cause recently observed asymmetric...

Proper estimation of droplet growth rate plays a crucial role on appropriate prediction of supersonic separators performance for separation of fine droplets from a gas stream. Up to now, all available researches employ empirical or semi-empirical correlations to define the relationship between droplet growth rate (dr/dt) and other operating variables such as temperatures (T and TL), Pressure (P...

Particle-covered droplets are used in several fundamental studies and practical applications. For many applications, it is important to understand the mechanics of these subjected induced external stresses, such as an electric field (E-field). Several research groups have studied deformation stability uniform E-fields. However, behavior particle-laden nonuniform E-fields inadequately reported. ...

Non-geometric string backgrounds were proposed to be related to a nonassociative deformation of the space-time geometry. In the flux formulation of double field theory (DFT), the structure of mathematically possible non-associative deformations is analyzed in detail. It is argued that on-shell there should not be any violation of associativity in the effective DFT action. For imposing either th...

The extensional rheological properties of dilute polymer solutions play a dominant role in many commercial processes such as air-assisted atomization. This is a high deformation rate process important in application of diverse materials such as paints, fertilizer sprays and delivery of airborne drugs. Dilute polymeric solutions which have identical values of high shear-rate viscosity (HSV) ofte...