This work is concerned with the construction of a lattice-Boltzmann (LB) model for ideal miscible fluids. In this particular case, the collision term in the LB equation can be modelled by only considering mutual and cross collisions between, respectively, particles of the same and of different kinds. A non-linear LB model with three distinct relaxation times intended to be used in problems with...

We present an Immersed Boundary method for interactions between elastic boundaries and mixtures of two fluids. Each fluid has its own velocity field and volume-fraction. A penalty method is used to enforce the condition that both fluids' velocities agree with that of the elastic boundaries. The method is applied to several problems: Taylor's swimming sheet problem for a mixture of two viscous f...

We show theoretically that a binary fluid characterized on a mesoscopic scale by purely repulsive short-range interactions without cores possesses an effective attraction between like particles. This "soft depletion effect" is a generic phenomenon driving a mixing-demixing transition in a binary system with pure repulsions.

the lack of variation in antifungal drugs, and the misuse or inappropriate use usually causes resistant strains of the yeast in human’s normal flora. unfortunately, a large number of candida infection cases in immunosuppressed patients with insufficient treatment eventually can cause patient's death. the aim of this study was to evaluate the in vitro conventional antifungal azole compounds with...

the conventional phase behavior study of petroleum reservoir fluids are valid when the reservoir temperature is far enough from the critical condition in which the material balance equation can be applied correctly. when the temperature of the reservoir is in the vicinity of the critical temperature the classical methods can’t determine the phase behavior of the mixture due to rapid phase chang...

The present work aims to study the effects of working fluids on thermal performance heat pipe with a wick and in horizontal position. experiments were conducted using copper 20.8 mm inner diameter, length evaporator, condenser, adiabatic regions 300 mm, 350 respectively. selected water, Methanol, ethanol, different binary mixtures (50: 50) %, (30: 70) (70: 30) % mixing ratios. filling ratio was...

in hard disk drives (hdd), it is necessary to decrease the flying height (fh) between the head and the disk (currently, fh is around 3-5 nm) so as to increase recording densities. retaining the solid lubricant has become a difficult proposition owing to intermittent contact between the surfaces. ztmd and z are used as solid lubricant to lubricate these interfaces. in this paper, the behavior of...